sokra / interop-test

ESM-CJS interop test

ESM-CJS interop test

• Results
  • Node.js
  • Babel
  • Webpack
  • Rollup.js
  • esbuild
• Results by test case
• Results by syntax
  • import x and similar
  • import { named } and similar
  • import { __esModule } and similar
  • import * and similar
  • import() and similar
  • require().default and similar
  • require().named and similar
  • require().__esModule and similar
  • require() and similar
• Direct differences
  • Webpack <-> Node.js (.mjs)
  • Babel <-> Node.js (.mjs)
  • Webpack .mjs <-> .js
  • Babel .mjs <-> .js

Test fixtures

See modules directory for details

• default-export
  • exports.default = "default";
• named-and-default-export
  • exports.named = "named"; exports.default = "default";
• named-and-null-default-export
  • exports.named = "named"; exports.default = null;
  • Is a falsy default export handled different from a truthy default export?
• named-export
  • exports.named = "named";
  • How are only named exports handled?
• tla
  • await Promise.resolve();
  • A module using top-level-await
  • Is this syntax supported?
• order.js
  • exports.b = "b"; exports.a = "a"; exports.c = "c";
  • Are exports in namespace objects alphabetically ordered?
• single-
  • module.exports = ...
  • How is a single module.exports export handled?
• single-...-defined
  • Object.defineProperty(module, "exports", { value: ... })
• single-promise-
  • module.exports = Promise.resolve(...)
  • Is a Promise handled when using import()?
  • Is it handled like Top-Level-Await when using import?
• -esModule
  • Object.defineProperty(exports, "__esModule", { value: true });
  • How is the default export handled with __esModule?
• -non-enumerable
  • Exports defined with Object.defineProperty(exports, "name", { value: "value" });
  • Does non-enumerable exports behave like normal exports?
• -getter
  • Exports defined with Object.defineProperty(exports, "name", { get: () => "value" });
  • Does getter exports behave like normal exports?
• -inherited
  • Exports set on the prototype of exports
  • Does inherited exports behave like normal exports?
• -runtime
  • Export keys and values not compile time constant, also for __esModule
  • Is the behavior different when module is not statically analysable?
• -live
  • Exports are set one tick after module evaluation
  • Are exports live-bindings or copied after evaluation?
• -esm-reexport
  • Module is reexported via export * from "..."
  • Is there a behavior change from reexporting?
  • Is default export (incorrectly) exported?
• -reexport
  • Module is reexported via module.export = require("...")
  • Is there a behavior change from reexporting?
• -esm
  • An ESM module
  • How does the ESM module compare to the CommonJS equivalent?

Results

For readablility some shortcuts are applied:

• named
  • named: 'named'
• [named]
  • [named]: 'named' (non enumerable)
• default
  • default: 'default'
• [default]
  • [default]: 'default' (non enumerable)
• __esModule
  • __esModule: true
• [__esModule]
  • [__esModule]: true (non enumerable)
• [G]
  • [Getter]
• [Module]
  • [Symbol(Symbol.toStringTag)]: 'Module'

Node.js

current version

Version: node@20.0.0

node	import x import { default as x }	import * as x; x.default import * as x; ident(x).default	import { named as x }	import * as x; x.named import * as x; ident(x).named	import { __esModule as x }	import * as x; x.__esModule import * as x; ident(x).__esModule	import * as x import()	x = require(); x.default	x = require(); ident(x).default	{ named } = require()	x = require(); x.named	x = require(); ident(x).named	{ __esModule } = require() x = require(); x.__esModule	x = require(); ident(x).__esModule	x = require()	await import() === require()	import * as x; x === await import()
default-export default-export-runtime	{ default }	{ default }	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default: { default }, [Module] }	'default'	'default'	undefined	undefined	undefined	undefined	undefined	{ default }	false	true
default-export-esModule	{ [__esModule], default }	{ [__esModule], default }	syntax error	undefined	true	true	[Module: null prototype] { __esModule, default: { [__esModule], default }, [Module] }	'default'	'default'	undefined	undefined	undefined	true	true	{ [__esModule], default }	false	true
default-export-esModule-esm-reexport	syntax error	undefined	syntax error	undefined	true	true	[Module: null prototype] { __esModule, [Module] }	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	true
default-export-esm	'default'	'default'	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default, [Module] }	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	true
named-and-default-export named-and-default-export-duplicate named-and-default-export-reexport	{ named, default }	{ named, default }	'named'	'named'	syntax error	undefined	[Module: null prototype] { default: { named, default }, named, [Module] }	'default'	'default'	'named'	'named'	'named'	undefined	undefined	{ named, default }	false	true
named-and-default-export-babel-getter	{ [__esModule], named: [G], default: [G] }	{ [__esModule], named: [G], default: [G] }	'named'	'named'	true	true	[Module: null prototype] { __esModule, default: { [__esModule], named: [G], default: [G] }, named, [Module] }	'default'	'default'	'named'	'named'	'named'	true	true	{ [__esModule], named: [G], default: [G] }	false	true
named-and-default-export-esModule named-and-default-export-esModule-duplicate named-and-default-export-esModule-reexport	{ [__esModule], named, default }	{ [__esModule], named, default }	'named'	'named'	true	true	[Module: null prototype] { __esModule, default: { [__esModule], named, default }, named, [Module] }	'default'	'default'	'named'	'named'	'named'	true	true	{ [__esModule], named, default }	false	true
named-and-default-export-esModule-esm-reexport	syntax error	undefined	'named'	'named'	true	true	[Module: null prototype] { __esModule, named, [Module] }	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	true
named-and-default-export-esm tla-esm	'default'	'default'	'named'	'named'	syntax error	undefined	[Module: null prototype] { default, named, [Module] }	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	true
named-and-default-export-esm-esm-reexport named-and-default-export-esm-reexport named-export-esm tla-esm-esm-reexport	syntax error	undefined	'named'	'named'	syntax error	undefined	[Module: null prototype] { named, [Module] }	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	true
named-and-default-export-getter	{ [named]: [G], [default]: [G] }	{ [named]: [G], [default]: [G] }	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default: { [named]: [G], [default]: [G] }, [Module] }	'default'	'default'	'named'	'named'	'named'	undefined	undefined	{ [named]: [G], [default]: [G] }	false	true
named-and-default-export-getter-esModule	{ [__esModule]: [G: true], [named]: [G], [default]: [G] }	{ [__esModule]: [G: true], [named]: [G], [default]: [G] }	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default: { [__esModule]: [G: true], [named]: [G], [default]: [G] }, [Module] }	'default'	'default'	'named'	'named'	'named'	true	true	{ [__esModule]: [G: true], [named]: [G], [default]: [G] }	false	true
named-and-default-export-inherited named-and-default-export-runtime single-object-with-default-export single-object-with-default-export-duplicate	{ named, default }	{ named, default }	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default: { named, default }, [Module] }	'default'	'default'	'named'	'named'	'named'	undefined	undefined	{ named, default }	false	true
named-and-default-export-live	{ named, default }	{ named, default }	'named-outdated'	'named-outdated'	syntax error	undefined	[Module: null prototype] { default: { named, default }, named: 'named-outdated', [Module] }	'default'	'default'	'named-outdated'	'named'	'named'	undefined	undefined	{ named, default }	false	true
named-and-default-export-non-enumerable	{ [named], [default] }	{ [named], [default] }	'named'	'named'	syntax error	undefined	[Module: null prototype] { default: { [named], [default] }, named, [Module] }	'default'	'default'	'named'	'named'	'named'	undefined	undefined	{ [named], [default] }	false	true
named-and-default-export-non-enumerable-inherited	{ [named], [default] }	{ [named], [default] }	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default: { [named], [default] }, [Module] }	'default'	'default'	'named'	'named'	'named'	undefined	undefined	{ [named], [default] }	false	true
named-and-default-export-runtime-esModule	{ [__esModule], named, default }	{ [__esModule], named, default }	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default: { [__esModule], named, default }, [Module] }	'default'	'default'	'named'	'named'	'named'	true	true	{ [__esModule], named, default }	false	true
named-and-null-default-export	{ named, default: null }	{ named, default: null }	'named'	'named'	syntax error	undefined	[Module: null prototype] { default: { named, default: null }, named, [Module] }	null	null	'named'	'named'	'named'	undefined	undefined	{ named, default: null }	false	true
named-and-null-default-export-esModule	{ [__esModule], named, default: null }	{ [__esModule], named, default: null }	'named'	'named'	true	true	[Module: null prototype] { __esModule, default: { [__esModule], named, default: null }, named, [Module] }	null	null	'named'	'named'	'named'	true	true	{ [__esModule], named, default: null }	false	true
named-and-null-default-export-non-enumerable	{ [named], [default]: null }	{ [named], [default]: null }	'named'	'named'	syntax error	undefined	[Module: null prototype] { default: { [named], [default]: null }, named, [Module] }	null	null	'named'	'named'	'named'	undefined	undefined	{ [named], [default]: null }	false	true
named-and-null-default-export-runtime single-object-with-null-default-export	{ named, default: null }	{ named, default: null }	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default: { named, default: null }, [Module] }	null	null	'named'	'named'	'named'	undefined	undefined	{ named, default: null }	false	true
named-and-null-default-export-runtime-esModule	{ [__esModule], named, default: null }	{ [__esModule], named, default: null }	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default: { [__esModule], named, default: null }, [Module] }	null	null	'named'	'named'	'named'	true	true	{ [__esModule], named, default: null }	false	true
named-export	{ named }	{ named }	'named'	'named'	syntax error	undefined	[Module: null prototype] { default: { named }, named, [Module] }	undefined	undefined	'named'	'named'	'named'	undefined	undefined	{ named }	false	true
named-export-esModule	{ [__esModule], named }	{ [__esModule], named }	'named'	'named'	true	true	[Module: null prototype] { __esModule, default: { [__esModule], named }, named, [Module] }	undefined	undefined	'named'	'named'	'named'	true	true	{ [__esModule], named }	false	true
named-export-non-enumerable	{ [named] }	{ [named] }	'named'	'named'	syntax error	undefined	[Module: null prototype] { default: { [named] }, named, [Module] }	undefined	undefined	'named'	'named'	'named'	undefined	undefined	{ [named] }	false	true
named-export-runtime single-object-export	{ named }	{ named }	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default: { named }, [Module] }	undefined	undefined	'named'	'named'	'named'	undefined	undefined	{ named }	false	true
named-export-runtime-esModule	{ [__esModule], named }	{ [__esModule], named }	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default: { [__esModule], named }, [Module] }	undefined	undefined	'named'	'named'	'named'	true	true	{ [__esModule], named }	false	true
order	{ b, a, c }	{ b, a, c }	syntax error	undefined	syntax error	undefined	[Module: null prototype] { a, b, c, default: { b, a, c }, [Module] }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	{ b, a, c }	false	true
order-esModule	{ [__esModule], b, a, c }	{ [__esModule], b, a, c }	syntax error	undefined	true	true	[Module: null prototype] { __esModule, a, b, c, default: { [__esModule], b, a, c }, [Module] }	undefined	undefined	undefined	undefined	undefined	true	true	{ [__esModule], b, a, c }	false	true
order-esm	syntax error	undefined	syntax error	undefined	syntax error	undefined	[Module: null prototype] { a, b, c, [Module] }	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	true
require-circular require-circular-self require-conditional-execution	{ default, named }	{ default, named }	'named'	'named'	syntax error	undefined	[Module: null prototype] { default: { default, named }, named, [Module] }	'default'	'default'	'named'	'named'	'named'	undefined	undefined	{ default, named }	false	true
single-empty-string-export	''	''	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default: '', [Module] }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	''	false	true
single-null-export	null	null	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default: null, [Module] }	type error	undefined	type error	type error	undefined	type error	undefined	null	false	true
single-promise-object-export	Promise { { named } }	Promise { { named } }	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default: Promise { { named } }, [Module] }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	Promise { { named } }	false	true
single-promise-object-with-default-export	Promise { { named, default } }	Promise { { named, default } }	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default: Promise { { named, default } }, [Module] }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	Promise { { named, default } }	false	true
single-promise-string-export	Promise { 'single' }	Promise { 'single' }	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default: Promise { 'single' }, [Module] }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	Promise { 'single' }	false	true
single-string-export single-string-export-defined single-string-export-duplicate single-string-export-getter single-string-export-reexport	'single'	'single'	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default: 'single', [Module] }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	'single'	false	true
single-string-export-esm-reexport	syntax error	undefined	syntax error	undefined	syntax error	undefined	[Module: null prototype] { [Module] }	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	true
single-string-export-live	'single-outdated'	'single-outdated'	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default: 'single-outdated', [Module] }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	'single-outdated'	false	true
tla-esModule	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error
tla-esModule-esm-reexport	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	syntax error	syntax error

long term stable version

Version: node@18.16.0

node-lts	import x import { default as x }	import * as x; x.default import * as x; ident(x).default	import { named as x }	import * as x; x.named import * as x; ident(x).named	import { __esModule as x }	import * as x; x.__esModule import * as x; ident(x).__esModule	import * as x import()	x = require(); x.default	x = require(); ident(x).default	{ named } = require()	x = require(); x.named	x = require(); ident(x).named	{ __esModule } = require() x = require(); x.__esModule	x = require(); ident(x).__esModule	x = require()	await import() === require()	import * as x; x === await import()
default-export default-export-runtime	{ default }	{ default }	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default: { default }, [Module] }	'default'	'default'	undefined	undefined	undefined	undefined	undefined	{ default }	false	true
default-export-esModule	{ [__esModule], default }	{ [__esModule], default }	syntax error	undefined	true	true	[Module: null prototype] { __esModule, default: { [__esModule], default }, [Module] }	'default'	'default'	undefined	undefined	undefined	true	true	{ [__esModule], default }	false	true
default-export-esModule-esm-reexport	syntax error	undefined	syntax error	undefined	true	true	[Module: null prototype] { __esModule, [Module] }	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	true
default-export-esm	'default'	'default'	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default, [Module] }	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	true
named-and-default-export named-and-default-export-duplicate named-and-default-export-reexport	{ named, default }	{ named, default }	'named'	'named'	syntax error	undefined	[Module: null prototype] { default: { named, default }, named, [Module] }	'default'	'default'	'named'	'named'	'named'	undefined	undefined	{ named, default }	false	true
named-and-default-export-babel-getter	{ [__esModule], named: [G], default: [G] }	{ [__esModule], named: [G], default: [G] }	'named'	'named'	true	true	[Module: null prototype] { __esModule, default: { [__esModule], named: [G], default: [G] }, named, [Module] }	'default'	'default'	'named'	'named'	'named'	true	true	{ [__esModule], named: [G], default: [G] }	false	true
named-and-default-export-esModule named-and-default-export-esModule-duplicate named-and-default-export-esModule-reexport	{ [__esModule], named, default }	{ [__esModule], named, default }	'named'	'named'	true	true	[Module: null prototype] { __esModule, default: { [__esModule], named, default }, named, [Module] }	'default'	'default'	'named'	'named'	'named'	true	true	{ [__esModule], named, default }	false	true
named-and-default-export-esModule-esm-reexport	syntax error	undefined	'named'	'named'	true	true	[Module: null prototype] { __esModule, named, [Module] }	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	true
named-and-default-export-esm tla-esm	'default'	'default'	'named'	'named'	syntax error	undefined	[Module: null prototype] { default, named, [Module] }	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	true
named-and-default-export-esm-esm-reexport named-and-default-export-esm-reexport named-export-esm tla-esm-esm-reexport	syntax error	undefined	'named'	'named'	syntax error	undefined	[Module: null prototype] { named, [Module] }	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	true
named-and-default-export-getter	{ [named]: [G], [default]: [G] }	{ [named]: [G], [default]: [G] }	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default: { [named]: [G], [default]: [G] }, [Module] }	'default'	'default'	'named'	'named'	'named'	undefined	undefined	{ [named]: [G], [default]: [G] }	false	true
named-and-default-export-getter-esModule	{ [__esModule]: [G: true], [named]: [G], [default]: [G] }	{ [__esModule]: [G: true], [named]: [G], [default]: [G] }	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default: { [__esModule]: [G: true], [named]: [G], [default]: [G] }, [Module] }	'default'	'default'	'named'	'named'	'named'	true	true	{ [__esModule]: [G: true], [named]: [G], [default]: [G] }	false	true
named-and-default-export-inherited named-and-default-export-runtime single-object-with-default-export single-object-with-default-export-duplicate	{ named, default }	{ named, default }	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default: { named, default }, [Module] }	'default'	'default'	'named'	'named'	'named'	undefined	undefined	{ named, default }	false	true
named-and-default-export-live	{ named, default }	{ named, default }	'named-outdated'	'named-outdated'	syntax error	undefined	[Module: null prototype] { default: { named, default }, named: 'named-outdated', [Module] }	'default'	'default'	'named-outdated'	'named'	'named'	undefined	undefined	{ named, default }	false	true
named-and-default-export-non-enumerable	{ [named], [default] }	{ [named], [default] }	'named'	'named'	syntax error	undefined	[Module: null prototype] { default: { [named], [default] }, named, [Module] }	'default'	'default'	'named'	'named'	'named'	undefined	undefined	{ [named], [default] }	false	true
named-and-default-export-non-enumerable-inherited	{ [named], [default] }	{ [named], [default] }	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default: { [named], [default] }, [Module] }	'default'	'default'	'named'	'named'	'named'	undefined	undefined	{ [named], [default] }	false	true
named-and-default-export-runtime-esModule	{ [__esModule], named, default }	{ [__esModule], named, default }	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default: { [__esModule], named, default }, [Module] }	'default'	'default'	'named'	'named'	'named'	true	true	{ [__esModule], named, default }	false	true
named-and-null-default-export	{ named, default: null }	{ named, default: null }	'named'	'named'	syntax error	undefined	[Module: null prototype] { default: { named, default: null }, named, [Module] }	null	null	'named'	'named'	'named'	undefined	undefined	{ named, default: null }	false	true
named-and-null-default-export-esModule	{ [__esModule], named, default: null }	{ [__esModule], named, default: null }	'named'	'named'	true	true	[Module: null prototype] { __esModule, default: { [__esModule], named, default: null }, named, [Module] }	null	null	'named'	'named'	'named'	true	true	{ [__esModule], named, default: null }	false	true
named-and-null-default-export-non-enumerable	{ [named], [default]: null }	{ [named], [default]: null }	'named'	'named'	syntax error	undefined	[Module: null prototype] { default: { [named], [default]: null }, named, [Module] }	null	null	'named'	'named'	'named'	undefined	undefined	{ [named], [default]: null }	false	true
named-and-null-default-export-runtime single-object-with-null-default-export	{ named, default: null }	{ named, default: null }	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default: { named, default: null }, [Module] }	null	null	'named'	'named'	'named'	undefined	undefined	{ named, default: null }	false	true
named-and-null-default-export-runtime-esModule	{ [__esModule], named, default: null }	{ [__esModule], named, default: null }	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default: { [__esModule], named, default: null }, [Module] }	null	null	'named'	'named'	'named'	true	true	{ [__esModule], named, default: null }	false	true
named-export	{ named }	{ named }	'named'	'named'	syntax error	undefined	[Module: null prototype] { default: { named }, named, [Module] }	undefined	undefined	'named'	'named'	'named'	undefined	undefined	{ named }	false	true
named-export-esModule	{ [__esModule], named }	{ [__esModule], named }	'named'	'named'	true	true	[Module: null prototype] { __esModule, default: { [__esModule], named }, named, [Module] }	undefined	undefined	'named'	'named'	'named'	true	true	{ [__esModule], named }	false	true
named-export-non-enumerable	{ [named] }	{ [named] }	'named'	'named'	syntax error	undefined	[Module: null prototype] { default: { [named] }, named, [Module] }	undefined	undefined	'named'	'named'	'named'	undefined	undefined	{ [named] }	false	true
named-export-runtime single-object-export	{ named }	{ named }	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default: { named }, [Module] }	undefined	undefined	'named'	'named'	'named'	undefined	undefined	{ named }	false	true
named-export-runtime-esModule	{ [__esModule], named }	{ [__esModule], named }	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default: { [__esModule], named }, [Module] }	undefined	undefined	'named'	'named'	'named'	true	true	{ [__esModule], named }	false	true
order	{ b, a, c }	{ b, a, c }	syntax error	undefined	syntax error	undefined	[Module: null prototype] { a, b, c, default: { b, a, c }, [Module] }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	{ b, a, c }	false	true
order-esModule	{ [__esModule], b, a, c }	{ [__esModule], b, a, c }	syntax error	undefined	true	true	[Module: null prototype] { __esModule, a, b, c, default: { [__esModule], b, a, c }, [Module] }	undefined	undefined	undefined	undefined	undefined	true	true	{ [__esModule], b, a, c }	false	true
order-esm	syntax error	undefined	syntax error	undefined	syntax error	undefined	[Module: null prototype] { a, b, c, [Module] }	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	true
require-circular require-circular-self require-conditional-execution	{ default, named }	{ default, named }	'named'	'named'	syntax error	undefined	[Module: null prototype] { default: { default, named }, named, [Module] }	'default'	'default'	'named'	'named'	'named'	undefined	undefined	{ default, named }	false	true
single-empty-string-export	''	''	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default: '', [Module] }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	''	false	true
single-null-export	null	null	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default: null, [Module] }	type error	undefined	type error	type error	undefined	type error	undefined	null	false	true
single-promise-object-export	Promise { { named } }	Promise { { named } }	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default: Promise { { named } }, [Module] }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	Promise { { named } }	false	true
single-promise-object-with-default-export	Promise { { named, default } }	Promise { { named, default } }	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default: Promise { { named, default } }, [Module] }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	Promise { { named, default } }	false	true
single-promise-string-export	Promise { 'single' }	Promise { 'single' }	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default: Promise { 'single' }, [Module] }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	Promise { 'single' }	false	true
single-string-export single-string-export-defined single-string-export-duplicate single-string-export-getter single-string-export-reexport	'single'	'single'	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default: 'single', [Module] }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	'single'	false	true
single-string-export-esm-reexport	syntax error	undefined	syntax error	undefined	syntax error	undefined	[Module: null prototype] { [Module] }	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	true
single-string-export-live	'single-outdated'	'single-outdated'	syntax error	undefined	syntax error	undefined	[Module: null prototype] { default: 'single-outdated', [Module] }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	'single-outdated'	false	true
tla-esModule	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error
tla-esModule-esm-reexport	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	require(esm) not allowed	syntax error	syntax error

Babel

Babel behaves different depending on the file extension. If it is .mjs, it will compile in a strictNamespace mode.

.mjs file

Version: @babel/cli@7.21.5 @babel/core@7.21.8 @babel/plugin-transform-modules-commonjs@7.21.5 babel-plugin-dynamic-import-node@2.3.3 node@20.0.0

babel	import x import { default as x } import * as x; x.default import * as x; ident(x).default	import { named as x } x = require(); x.named	import * as x; x.named import * as x; ident(x).named	import { __esModule as x } { __esModule } = require() x = require(); x.__esModule	import * as x; x.__esModule import * as x; ident(x).__esModule x = require(); ident(x).__esModule	import * as x import()	x = require(); x.default	x = require(); ident(x).default	{ named } = require()	x = require(); ident(x).named	x = require()	await import() === require()	import * as x; x === await import()
default-export default-export-runtime	{ default }	undefined	undefined	undefined	undefined	{ default: { default } }	'default'	'default'	undefined	undefined	{ default }	false	true
default-export-esModule default-export-esm	'default'	undefined	undefined	true	true	{ [__esModule], default }	'default'	'default'	undefined	undefined	{ [__esModule], default }	true	true
default-export-esModule-esm-reexport	undefined	undefined	undefined	true	true	{ [__esModule] }	undefined	undefined	undefined	undefined	{ [__esModule] }	true	true
named-and-default-export named-and-default-export-duplicate named-and-default-export-reexport named-and-default-export-runtime single-object-with-default-export single-object-with-default-export-duplicate	{ named, default }	'named'	'named'	undefined	undefined	{ named, default: { named, default } }	'default'	'default'	'named'	'named'	{ named, default }	false	true
named-and-default-export-babel-getter	'default'	'named'	'named'	true	true	{ [__esModule], named: [G], default: [G] }	'default'	'default'	'named'	'named'	{ [__esModule], named: [G], default: [G] }	true	true
named-and-default-export-esModule named-and-default-export-esModule-duplicate named-and-default-export-esModule-reexport named-and-default-export-runtime-esModule	'default'	'named'	'named'	true	true	{ [__esModule], named, default }	'default'	'default'	'named'	'named'	{ [__esModule], named, default }	true	true
named-and-default-export-esModule-esm-reexport named-and-default-export-esm-reexport	undefined	'named'	'named'	true	true	{ [__esModule], named: [G] }	undefined	undefined	'named'	'named'	{ [__esModule], named: [G] }	true	true
named-and-default-export-esm	'default'	'named'	'named'	true	true	{ [__esModule], default, named }	'default'	'default'	'named'	'named'	{ [__esModule], default, named }	true	true
named-and-default-export-esm-esm-reexport tla-esm-esm-reexport	runtime error	runtime error	runtime error	runtime error	runtime error	runtime error	runtime error	runtime error	runtime error	runtime error	runtime error	runtime error	runtime error
named-and-default-export-getter	{ [named]: [G], [default]: [G] }	'named'	undefined	undefined	undefined	{ default: { [named]: [G], [default]: [G] } }	'default'	'default'	'named'	'named'	{ [named]: [G], [default]: [G] }	false	true
named-and-default-export-getter-esModule	'default'	'named'	'named'	true	true	{ [__esModule]: [G: true], [named]: [G], [default]: [G] }	'default'	'default'	'named'	'named'	{ [__esModule]: [G: true], [named]: [G], [default]: [G] }	true	true
named-and-default-export-inherited	{ named, default }	'named'	undefined	undefined	undefined	{ default: { named, default } }	'default'	'default'	'named'	'named'	{ named, default }	false	true
named-and-default-export-live	{ named, default }	'named'	'named-outdated'	undefined	undefined	{ named: 'named-outdated', default: { named, default } }	'default'	'default'	'named-outdated'	'named'	{ named, default }	false	true
named-and-default-export-non-enumerable named-and-default-export-non-enumerable-inherited	{ [named], [default] }	'named'	undefined	undefined	undefined	{ default: { [named], [default] } }	'default'	'default'	'named'	'named'	{ [named], [default] }	false	true
named-and-null-default-export named-and-null-default-export-runtime single-object-with-null-default-export	{ named, default: null }	'named'	'named'	undefined	undefined	{ named, default: { named, default: null } }	null	null	'named'	'named'	{ named, default: null }	false	true
named-and-null-default-export-esModule named-and-null-default-export-runtime-esModule	null	'named'	'named'	true	true	{ [__esModule], named, default: null }	null	null	'named'	'named'	{ [__esModule], named, default: null }	true	true
named-and-null-default-export-non-enumerable	{ [named], [default]: null }	'named'	undefined	undefined	undefined	{ default: { [named], [default]: null } }	null	null	'named'	'named'	{ [named], [default]: null }	false	true
named-export named-export-runtime single-object-export	{ named }	'named'	'named'	undefined	undefined	{ named, default: { named } }	undefined	undefined	'named'	'named'	{ named }	false	true
named-export-esModule named-export-esm named-export-runtime-esModule	undefined	'named'	'named'	true	true	{ [__esModule], named }	undefined	undefined	'named'	'named'	{ [__esModule], named }	true	true
named-export-non-enumerable	{ [named] }	'named'	undefined	undefined	undefined	{ default: { [named] } }	undefined	undefined	'named'	'named'	{ [named] }	false	true
order	{ b, a, c }	undefined	undefined	undefined	undefined	{ b, a, c, default: { b, a, c } }	undefined	undefined	undefined	undefined	{ b, a, c }	false	true
order-esModule	undefined	undefined	undefined	true	true	{ [__esModule], b, a, c }	undefined	undefined	undefined	undefined	{ [__esModule], b, a, c }	true	true
order-esm	undefined	undefined	undefined	true	true	{ [__esModule], a, b, c }	undefined	undefined	undefined	undefined	{ [__esModule], a, b, c }	true	true
require-circular require-circular-self require-conditional-execution	{ default, named }	'named'	'named'	undefined	undefined	{ named, default: { default, named } }	'default'	'default'	'named'	'named'	{ default, named }	false	true
single-empty-string-export	''	undefined	undefined	undefined	undefined	{ default: '' }	undefined	undefined	undefined	undefined	''	false	false
single-null-export	null	type error	undefined	type error	undefined	{ default: null }	type error	undefined	type error	undefined	null	false	false
single-promise-object-export	Promise { { named } }	undefined	undefined	undefined	undefined	{ default: Promise { { named } } }	undefined	undefined	undefined	undefined	Promise { { named } }	false	true
single-promise-object-with-default-export	Promise { { named, default } }	undefined	undefined	undefined	undefined	{ default: Promise { { named, default } } }	undefined	undefined	undefined	undefined	Promise { { named, default } }	false	true
single-promise-string-export	Promise { 'single' }	undefined	undefined	undefined	undefined	{ default: Promise { 'single' } }	undefined	undefined	undefined	undefined	Promise { 'single' }	false	true
single-string-export single-string-export-defined single-string-export-duplicate single-string-export-getter single-string-export-reexport	'single'	undefined	undefined	undefined	undefined	{ default: 'single' }	undefined	undefined	undefined	undefined	'single'	false	false
single-string-export-esm-reexport	undefined	undefined	undefined	true	true	{ '0': [G: 's'], '1': [G: 'i'], '2': [G: 'n'], '3': [G: 'g'], '4': [G: 'l'], '5': [G: 'e'], [__esModule] }	undefined	undefined	undefined	undefined	{ '0': [G: 's'], '1': [G: 'i'], '2': [G: 'n'], '3': [G: 'g'], '4': [G: 'l'], '5': [G: 'e'], [__esModule] }	true	true
single-string-export-live	'single-outdated'	undefined	undefined	undefined	undefined	{ default: 'single-outdated' }	undefined	undefined	undefined	undefined	'single-outdated'	false	false
tla-esModule tla-esModule-esm-reexport tla-esm	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error

.js file

Version: @babel/cli@7.21.5 @babel/core@7.21.8 @babel/plugin-transform-modules-commonjs@7.21.5 babel-plugin-dynamic-import-node@2.3.3 node@20.0.0

babel-js	import x import { default as x } import * as x; x.default import * as x; ident(x).default	import { named as x } x = require(); x.named	import * as x; x.named import * as x; ident(x).named	import { __esModule as x } { __esModule } = require() x = require(); x.__esModule	import * as x; x.__esModule import * as x; ident(x).__esModule x = require(); ident(x).__esModule	import * as x import()	x = require(); x.default	x = require(); ident(x).default	{ named } = require()	x = require(); ident(x).named	x = require()	await import() === require()	import * as x; x === await import()
default-export default-export-runtime	{ default }	undefined	undefined	undefined	undefined	{ default: { default } }	'default'	'default'	undefined	undefined	{ default }	false	true
default-export-esModule default-export-esm	'default'	undefined	undefined	true	true	{ [__esModule], default }	'default'	'default'	undefined	undefined	{ [__esModule], default }	true	true
default-export-esModule-esm-reexport	undefined	undefined	undefined	true	true	{ [__esModule] }	undefined	undefined	undefined	undefined	{ [__esModule] }	true	true
named-and-default-export named-and-default-export-duplicate named-and-default-export-reexport named-and-default-export-runtime single-object-with-default-export single-object-with-default-export-duplicate	{ named, default }	'named'	'named'	undefined	undefined	{ named, default: { named, default } }	'default'	'default'	'named'	'named'	{ named, default }	false	true
named-and-default-export-babel-getter	'default'	'named'	'named'	true	true	{ [__esModule], named: [G], default: [G] }	'default'	'default'	'named'	'named'	{ [__esModule], named: [G], default: [G] }	true	true
named-and-default-export-esModule named-and-default-export-esModule-duplicate named-and-default-export-esModule-reexport named-and-default-export-runtime-esModule	'default'	'named'	'named'	true	true	{ [__esModule], named, default }	'default'	'default'	'named'	'named'	{ [__esModule], named, default }	true	true
named-and-default-export-esModule-esm-reexport named-and-default-export-esm-reexport	undefined	'named'	'named'	true	true	{ [__esModule], named: [G] }	undefined	undefined	'named'	'named'	{ [__esModule], named: [G] }	true	true
named-and-default-export-esm	'default'	'named'	'named'	true	true	{ [__esModule], default, named }	'default'	'default'	'named'	'named'	{ [__esModule], default, named }	true	true
named-and-default-export-esm-esm-reexport tla-esm-esm-reexport	runtime error	runtime error	runtime error	runtime error	runtime error	runtime error	runtime error	runtime error	runtime error	runtime error	runtime error	runtime error	runtime error
named-and-default-export-getter	{ [named]: [G], [default]: [G] }	'named'	undefined	undefined	undefined	{ default: { [named]: [G], [default]: [G] } }	'default'	'default'	'named'	'named'	{ [named]: [G], [default]: [G] }	false	true
named-and-default-export-getter-esModule	'default'	'named'	'named'	true	true	{ [__esModule]: [G: true], [named]: [G], [default]: [G] }	'default'	'default'	'named'	'named'	{ [__esModule]: [G: true], [named]: [G], [default]: [G] }	true	true
named-and-default-export-inherited	{ named, default }	'named'	undefined	undefined	undefined	{ default: { named, default } }	'default'	'default'	'named'	'named'	{ named, default }	false	true
named-and-default-export-live	{ named, default }	'named'	'named-outdated'	undefined	undefined	{ named: 'named-outdated', default: { named, default } }	'default'	'default'	'named-outdated'	'named'	{ named, default }	false	true
named-and-default-export-non-enumerable named-and-default-export-non-enumerable-inherited	{ [named], [default] }	'named'	undefined	undefined	undefined	{ default: { [named], [default] } }	'default'	'default'	'named'	'named'	{ [named], [default] }	false	true
named-and-null-default-export named-and-null-default-export-runtime single-object-with-null-default-export	{ named, default: null }	'named'	'named'	undefined	undefined	{ named, default: { named, default: null } }	null	null	'named'	'named'	{ named, default: null }	false	true
named-and-null-default-export-esModule named-and-null-default-export-runtime-esModule	null	'named'	'named'	true	true	{ [__esModule], named, default: null }	null	null	'named'	'named'	{ [__esModule], named, default: null }	true	true
named-and-null-default-export-non-enumerable	{ [named], [default]: null }	'named'	undefined	undefined	undefined	{ default: { [named], [default]: null } }	null	null	'named'	'named'	{ [named], [default]: null }	false	true
named-export named-export-runtime single-object-export	{ named }	'named'	'named'	undefined	undefined	{ named, default: { named } }	undefined	undefined	'named'	'named'	{ named }	false	true
named-export-esModule named-export-esm named-export-runtime-esModule	undefined	'named'	'named'	true	true	{ [__esModule], named }	undefined	undefined	'named'	'named'	{ [__esModule], named }	true	true
named-export-non-enumerable	{ [named] }	'named'	undefined	undefined	undefined	{ default: { [named] } }	undefined	undefined	'named'	'named'	{ [named] }	false	true
order	{ b, a, c }	undefined	undefined	undefined	undefined	{ b, a, c, default: { b, a, c } }	undefined	undefined	undefined	undefined	{ b, a, c }	false	true
order-esModule	undefined	undefined	undefined	true	true	{ [__esModule], b, a, c }	undefined	undefined	undefined	undefined	{ [__esModule], b, a, c }	true	true
order-esm	undefined	undefined	undefined	true	true	{ [__esModule], a, b, c }	undefined	undefined	undefined	undefined	{ [__esModule], a, b, c }	true	true
require-circular require-circular-self require-conditional-execution	{ default, named }	'named'	'named'	undefined	undefined	{ named, default: { default, named } }	'default'	'default'	'named'	'named'	{ default, named }	false	true
single-empty-string-export	''	undefined	undefined	undefined	undefined	{ default: '' }	undefined	undefined	undefined	undefined	''	false	false
single-null-export	null	type error	undefined	type error	undefined	{ default: null }	type error	undefined	type error	undefined	null	false	false
single-promise-object-export	Promise { { named } }	undefined	undefined	undefined	undefined	{ default: Promise { { named } } }	undefined	undefined	undefined	undefined	Promise { { named } }	false	true
single-promise-object-with-default-export	Promise { { named, default } }	undefined	undefined	undefined	undefined	{ default: Promise { { named, default } } }	undefined	undefined	undefined	undefined	Promise { { named, default } }	false	true
single-promise-string-export	Promise { 'single' }	undefined	undefined	undefined	undefined	{ default: Promise { 'single' } }	undefined	undefined	undefined	undefined	Promise { 'single' }	false	true
single-string-export single-string-export-defined single-string-export-duplicate single-string-export-getter single-string-export-reexport	'single'	undefined	undefined	undefined	undefined	{ default: 'single' }	undefined	undefined	undefined	undefined	'single'	false	false
single-string-export-esm-reexport	undefined	undefined	undefined	true	true	{ '0': [G: 's'], '1': [G: 'i'], '2': [G: 'n'], '3': [G: 'g'], '4': [G: 'l'], '5': [G: 'e'], [__esModule] }	undefined	undefined	undefined	undefined	{ '0': [G: 's'], '1': [G: 'i'], '2': [G: 'n'], '3': [G: 'g'], '4': [G: 'l'], '5': [G: 'e'], [__esModule] }	true	true
single-string-export-live	'single-outdated'	undefined	undefined	undefined	undefined	{ default: 'single-outdated' }	undefined	undefined	undefined	undefined	'single-outdated'	false	false
tla-esModule tla-esModule-esm-reexport tla-esm	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error	syntax error

Webpack

ESM-flagged

When using a .mjs file or .js in a package.json context with "type": "module".

Version: webpack@5.81.0 node@20.0.0

webpack	import x import { default as x } import * as x; x.default	import * as x; ident(x).default	import { named as x } import * as x; x.named	import * as x; ident(x).named	import { __esModule as x } import * as x; x.__esModule	import * as x; ident(x).__esModule	import * as x	import()	x = require(); x.default	x = require(); ident(x).default	{ named } = require()	x = require(); x.named	x = require(); ident(x).named	{ __esModule } = require() x = require(); x.__esModule	x = require(); ident(x).__esModule	x = require()	await import() === require()	import * as x; x === await import()
default-export	{ default }	{ default }	undefined + errors	undefined	true + errors	true	[Module: null prototype] { [__esModule], default: [G] { default }, [Module] }	[Module: null prototype] { [__esModule], default: [G] { default }, [Module] }	'default'	'default'	undefined	undefined	undefined	undefined	undefined	{ default }	false	false
default-export-esModule	{ [__esModule], default }	{ [__esModule], default }	undefined + errors	undefined	true	true	[Module: null prototype] { [__esModule], default: [G] { [__esModule], default }, [Module] }	[Module: null prototype] { [__esModule], default: [G] { [__esModule], default }, [Module] }	'default'	'default'	undefined	undefined	undefined	true	true	{ [__esModule], default }	true	false
default-export-esModule-esm-reexport	undefined + errors	undefined	undefined + errors	undefined	true	true	{ [__esModule], [Module] }	{ [__esModule], [Module] }	undefined	undefined	undefined	undefined	undefined	true	true	{ [__esModule], [Module] }	true	true
default-export-esm	'default'	'default'	undefined + errors	undefined	true + errors	true	{ [__esModule], default: [G], [Module] }	{ [__esModule], default: [G], [Module] }	'default'	'default'	undefined	undefined	undefined	true	true	{ [__esModule], default: [G], [Module] }	true	true
default-export-runtime	{ default }	{ default }	undefined	undefined	true	true	[Module: null prototype] { [__esModule], default: [G] { default }, [Module] }	[Module: null prototype] { [__esModule], default: [G] { default }, [Module] }	'default'	'default'	undefined	undefined	undefined	undefined	undefined	{ default }	false	false
named-and-default-export named-and-default-export-duplicate named-and-default-export-reexport	{ named, default }	{ named, default }	'named'	'named'	true + errors	true	[Module: null prototype] { [__esModule], named: [G], default: [G] { named, default }, [Module] }	[Module: null prototype] { [__esModule], named: [G], default: [G] { named, default }, [Module] }	'default'	'default'	'named'	'named'	'named'	undefined	undefined	{ named, default }	false	false
named-and-default-export-babel-getter	{ [__esModule], named: [G], default: [G] }	{ [__esModule], named: [G], default: [G] }	'named'	'named'	true	true	[Module: null prototype] { [__esModule], named: [G], default: [G] { [__esModule], named: [G], default: [G] }, [Module] }	[Module: null prototype] { [__esModule], named: [G], default: [G] { [__esModule], named: [G], default: [G] }, [Module] }	'default'	'default'	'named'	'named'	'named'	true	true	{ [__esModule], named: [G], default: [G] }	true	false
named-and-default-export-esModule named-and-default-export-esModule-duplicate named-and-default-export-esModule-reexport named-and-default-export-runtime-esModule	{ [__esModule], named, default }	{ [__esModule], named, default }	'named'	'named'	true	true	[Module: null prototype] { [__esModule], named: [G], default: [G] { [__esModule], named, default }, [Module] }	[Module: null prototype] { [__esModule], named: [G], default: [G] { [__esModule], named, default }, [Module] }	'default'	'default'	'named'	'named'	'named'	true	true	{ [__esModule], named, default }	true	false
named-and-default-export-esModule-esm-reexport	undefined + errors	undefined	'named'	'named'	true	true	{ [__esModule], named: [G], [Module] }	{ [__esModule], named: [G], [Module] }	undefined	undefined	'named'	'named'	'named'	true	true	{ [__esModule], named: [G], [Module] }	true	true
named-and-default-export-esm	'default'	'default'	'named'	'named'	true + errors	true	{ [__esModule], default: [G], named: [G], [Module] }	{ [__esModule], default: [G], named: [G], [Module] }	'default'	'default'	'named'	'named'	'named'	true	true	{ [__esModule], default: [G], named: [G], [Module] }	true	true
named-and-default-export-esm-esm-reexport named-and-default-export-esm-reexport named-export-esm	undefined + errors	undefined	'named'	'named'	true + errors	true	{ [__esModule], named: [G], [Module] }	{ [__esModule], named: [G], [Module] }	undefined	undefined	'named'	'named'	'named'	true	true	{ [__esModule], named: [G], [Module] }	true	true
named-and-default-export-getter	{ [named]: [G], [default]: [G] }	{ [named]: [G], [default]: [G] }	'named'	'named'	true + errors	true	[Module: null prototype] { [__esModule], named: [G], default: [G] { [named]: [G], [default]: [G] }, [Module] }	[Module: null prototype] { [__esModule], named: [G], default: [G] { [named]: [G], [default]: [G] }, [Module] }	'default'	'default'	'named'	'named'	'named'	undefined	undefined	{ [named]: [G], [default]: [G] }	false	false
named-and-default-export-getter-esModule	{ [__esModule]: [G: true], [named]: [G], [default]: [G] }	{ [__esModule]: [G: true], [named]: [G], [default]: [G] }	'named'	'named'	true	true	[Module: null prototype] { [__esModule], named: [G], default: [G] { [__esModule]: [G: true], [named]: [G], [default]: [G] }, [Module] }	[Module: null prototype] { [__esModule], named: [G], default: [G] { [__esModule]: [G: true], [named]: [G], [default]: [G] }, [Module] }	'default'	'default'	'named'	'named'	'named'	true	true	{ [__esModule]: [G: true], [named]: [G], [default]: [G] }	true	false
named-and-default-export-inherited named-and-default-export-runtime single-object-with-default-export single-object-with-default-export-duplicate	{ named, default }	{ named, default }	'named'	'named'	true	true	[Module: null prototype] { [__esModule], named: [G], default: [G] { named, default }, [Module] }	[Module: null prototype] { [__esModule], named: [G], default: [G] { named, default }, [Module] }	'default'	'default'	'named'	'named'	'named'	undefined	undefined	{ named, default }	false	false
named-and-default-export-live	{ named, default }	{ named, default }	'named'	'named'	true + errors	true	[Module: null prototype] { [__esModule], named: [G], default: [G] { named, default }, [Module] }	[Module: null prototype] { [__esModule], named: [G], default: [G] { named, default }, [Module] }	'default'	'default'	'named-outdated'	'named'	'named'	undefined	undefined	{ named, default }	false	false
named-and-default-export-non-enumerable	{ [named], [default] }	{ [named], [default] }	'named'	'named'	true + errors	true	[Module: null prototype] { [__esModule], named: [G], default: [G] { [named], [default] }, [Module] }	[Module: null prototype] { [__esModule], named: [G], default: [G] { [named], [default] }, [Module] }	'default'	'default'	'named'	'named'	'named'	undefined	undefined	{ [named], [default] }	false	false
named-and-default-export-non-enumerable-inherited	{ [named], [default] }	{ [named], [default] }	'named'	'named'	true	true	[Module: null prototype] { [__esModule], named: [G], default: [G] { [named], [default] }, [Module] }	[Module: null prototype] { [__esModule], named: [G], default: [G] { [named], [default] }, [Module] }	'default'	'default'	'named'	'named'	'named'	undefined	undefined	{ [named], [default] }	false	false
named-and-null-default-export	{ named, default: null }	{ named, default: null }	'named'	'named'	true + errors	true	[Module: null prototype] { [__esModule], named: [G], default: [G] { named, default: null }, [Module] }	[Module: null prototype] { [__esModule], named: [G], default: [G] { named, default: null }, [Module] }	null	null	'named'	'named'	'named'	undefined	undefined	{ named, default: null }	false	false
named-and-null-default-export-esModule named-and-null-default-export-runtime-esModule	{ [__esModule], named, default: null }	{ [__esModule], named, default: null }	'named'	'named'	true	true	[Module: null prototype] { [__esModule], named: [G], default: [G] { [__esModule], named, default: null }, [Module] }	[Module: null prototype] { [__esModule], named: [G], default: [G] { [__esModule], named, default: null }, [Module] }	null	null	'named'	'named'	'named'	true	true	{ [__esModule], named, default: null }	true	false
named-and-null-default-export-non-enumerable	{ [named], [default]: null }	{ [named], [default]: null }	'named'	'named'	true + errors	true	[Module: null prototype] { [__esModule], named: [G], default: [G] { [named], [default]: null }, [Module] }	[Module: null prototype] { [__esModule], named: [G], default: [G] { [named], [default]: null }, [Module] }	null	null	'named'	'named'	'named'	undefined	undefined	{ [named], [default]: null }	false	false
named-and-null-default-export-runtime single-object-with-null-default-export	{ named, default: null }	{ named, default: null }	'named'	'named'	true	true	[Module: null prototype] { [__esModule], named: [G], default: [G] { named, default: null }, [Module] }	[Module: null prototype] { [__esModule], named: [G], default: [G] { named, default: null }, [Module] }	null	null	'named'	'named'	'named'	undefined	undefined	{ named, default: null }	false	false
named-export	{ named }	{ named }	'named'	'named'	true + errors	true	[Module: null prototype] { [__esModule], named: [G], default: [G] { named }, [Module] }	[Module: null prototype] { [__esModule], named: [G], default: [G] { named }, [Module] }	undefined	undefined	'named'	'named'	'named'	undefined	undefined	{ named }	false	false
named-export-esModule named-export-runtime-esModule	{ [__esModule], named }	{ [__esModule], named }	'named'	'named'	true	true	[Module: null prototype] { [__esModule], named: [G], default: [G] { [__esModule], named }, [Module] }	[Module: null prototype] { [__esModule], named: [G], default: [G] { [__esModule], named }, [Module] }	undefined	undefined	'named'	'named'	'named'	true	true	{ [__esModule], named }	true	false
named-export-non-enumerable	{ [named] }	{ [named] }	'named'	'named'	true + errors	true	[Module: null prototype] { [__esModule], named: [G], default: [G] { [named] }, [Module] }	[Module: null prototype] { [__esModule], named: [G], default: [G] { [named] }, [Module] }	undefined	undefined	'named'	'named'	'named'	undefined	undefined	{ [named] }	false	false
named-export-runtime single-object-export	{ named }	{ named }	'named'	'named'	true	true	[Module: null prototype] { [__esModule], named: [G], default: [G] { named }, [Module] }	[Module: null prototype] { [__esModule], named: [G], default: [G] { named }, [Module] }	undefined	undefined	'named'	'named'	'named'	undefined	undefined	{ named }	false	false
order	{ b, a, c }	{ b, a, c }	undefined + errors	undefined	true + errors	true	[Module: null prototype] { [__esModule], b: [G: 'b'], a: [G: 'a'], c: [G: 'c'], default: [G] { b, a, c }, [Module] }	[Module: null prototype] { [__esModule], b: [G: 'b'], a: [G: 'a'], c: [G: 'c'], default: [G] { b, a, c }, [Module] }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	{ b, a, c }	false	false
order-esModule	{ [__esModule], b, a, c }	{ [__esModule], b, a, c }	undefined + errors	undefined	true	true	[Module: null prototype] { [__esModule], b: [G: 'b'], a: [G: 'a'], c: [G: 'c'], default: [G] { [__esModule], b, a, c }, [Module] }	[Module: null prototype] { [__esModule], b: [G: 'b'], a: [G: 'a'], c: [G: 'c'], default: [G] { [__esModule], b, a, c }, [Module] }	undefined	undefined	undefined	undefined	undefined	true	true	{ [__esModule], b, a, c }	true	false
order-esm	undefined + errors	undefined	undefined + errors	undefined	true + errors	true	{ [__esModule], a: [G: 'a'], b: [G: 'b'], c: [G: 'c'], [Module] }	{ [__esModule], a: [G: 'a'], b: [G: 'b'], c: [G: 'c'], [Module] }	undefined	undefined	undefined	undefined	undefined	true	true	{ [__esModule], a: [G: 'a'], b: [G: 'b'], c: [G: 'c'], [Module] }	true	true
require-circular require-circular-self require-conditional-execution	{ default, named }	{ default, named }	'named'	'named'	true + errors	true	[Module: null prototype] { [__esModule], default: [G] { default, named }, named: [G], [Module] }	[Module: null prototype] { [__esModule], default: [G] { default, named }, named: [G], [Module] }	'default'	'default'	'named'	'named'	'named'	undefined	undefined	{ default, named }	false	false
single-empty-string-export	''	''	undefined	undefined	true	true	[Module: null prototype] { [__esModule], default: [G: ''], [Module] }	[Module: null prototype] { [__esModule], default: [G: ''], [Module] }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	''	false	false
single-null-export	null	null	type error	undefined	true	true	[Module: null prototype] { [__esModule], default: [G: null], [Module] }	[Module: null prototype] { [__esModule], default: [G: null], [Module] }	type error	undefined	type error	type error	undefined	type error	undefined	null	false	false
single-promise-object-export	Promise { { named } }	Promise { { named } }	undefined	undefined	true	true	[Module: null prototype] { [__esModule], constructor: [G: <Inspection threw>], then: [G: <Inspection threw>], catch: [G: <Inspection threw>], finally: [G: <Inspection threw>], default: [G] Promise { { named } }, [Module] }	{ named }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	Promise { { named } }	false	false
single-promise-object-with-default-export	Promise { { named, default } }	Promise { { named, default } }	undefined	undefined	true	true	[Module: null prototype] { [__esModule], constructor: [G: <Inspection threw>], then: [G: <Inspection threw>], catch: [G: <Inspection threw>], finally: [G: <Inspection threw>], default: [G] Promise { { named, default } }, [Module] }	{ named, default }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	Promise { { named, default } }	false	false
single-promise-string-export	Promise { 'single' }	Promise { 'single' }	undefined	undefined	true	true	[Module: null prototype] { [__esModule], constructor: [G: <Inspection threw>], then: [G: <Inspection threw>], catch: [G: <Inspection threw>], finally: [G: <Inspection threw>], default: [G] Promise { 'single' }, [Module] }	'single'	undefined	undefined	undefined	undefined	undefined	undefined	undefined	Promise { 'single' }	false	false
single-string-export single-string-export-defined single-string-export-duplicate single-string-export-getter single-string-export-reexport	'single'	'single'	undefined	undefined	true	true	[Module: null prototype] { [__esModule], default: [G: 'single'], [Module] }	[Module: null prototype] { [__esModule], default: [G: 'single'], [Module] }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	'single'	false	false
single-string-export-esm-reexport	undefined + errors	undefined	undefined	undefined	true	true	{ [__esModule], [Module] }	{ '0': [G: 's'], '1': [G: 'i'], '2': [G: 'n'], '3': [G: 'g'], '4': [G: 'l'], '5': [G: 'e'], [__esModule], [Module] }	undefined	undefined	undefined	undefined	undefined	true	true	{ '0': [G: 's'], '1': [G: 'i'], '2': [G: 'n'], '3': [G: 'g'], '4': [G: 'l'], '5': [G: 'e'], [__esModule], [Module] }	true	true
single-string-export-live	'single-outdated'	'single-outdated'	undefined	undefined	true	true	[Module: null prototype] { [__esModule], default: [G: 'single-outdated'], [Module] }	[Module: null prototype] { [__esModule], default: [G: 'single-outdated'], [Module] }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	'single-outdated'	false	false
tla-esModule tla-esModule-esm-reexport	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error
tla-esm	'default'	'default'	'named'	'named'	true + errors	true	{ [__esModule], default: [G], named: [G], [Module] }	{ [__esModule], default: [G], named: [G], [Module] }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	Promise { { [__esModule], default: [G], named: [G], [Module] }, [Symbol(webpack exports)]: { [__esModule], default: [G], named: [G], [Module] }, [Symbol(webpack queues)]: { [Function (anonymous)] [length]: 1, [name]: '' } }	false	true
tla-esm-esm-reexport	undefined + errors	undefined	'named'	'named'	true + errors	true	{ [__esModule], named: [G], [Module] }	{ [__esModule], named: [G], [Module] }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	Promise { { [__esModule], named: [G], [Module] }, [Symbol(webpack exports)]: { [__esModule], named: [G], [Module] }, [Symbol(webpack queues)]: { [Function (anonymous)] [length]: 1, [name]: '' } }	false	true

automatic ESM

When using a .js without "type": "module" in the package.json context and ESM is automatic-detect (no import or export used).

Version: webpack@5.81.0 node@20.0.0

webpack-js	import x import { default as x } import * as x; x.default	import * as x; ident(x).default	import { named as x } import * as x; x.named	import * as x; ident(x).named	import { __esModule as x } import * as x; x.__esModule	import * as x; ident(x).__esModule	import * as x	import()	x = require(); x.default	x = require(); ident(x).default	{ named } = require()	x = require(); x.named	x = require(); ident(x).named	{ __esModule } = require() x = require(); x.__esModule	x = require(); ident(x).__esModule	x = require()	await import() === require()	import * as x; x === await import()
default-export	{ default }	{ default }	undefined + warnings	undefined	true + warnings	true	[Module: null prototype] { [__esModule], default: [G] { default }, [Module] }	[Module: null prototype] { [__esModule], default: [G] { default }, [Module] }	'default'	'default'	undefined	undefined	undefined	undefined	undefined	{ default }	false	false
default-export-esModule	'default'	'default'	undefined + warnings	undefined	true	true	{ [__esModule], default }	{ [__esModule], default }	'default'	'default'	undefined	undefined	undefined	true	true	{ [__esModule], default }	true	true
default-export-esModule-esm-reexport	undefined + warnings	undefined	undefined + warnings	undefined	true	true	{ [__esModule], [Module] }	{ [__esModule], [Module] }	undefined	undefined	undefined	undefined	undefined	true	true	{ [__esModule], [Module] }	true	true
default-export-esm	'default'	'default'	undefined + warnings	undefined	true + warnings	true	{ [__esModule], default: [G], [Module] }	{ [__esModule], default: [G], [Module] }	'default'	'default'	undefined	undefined	undefined	true	true	{ [__esModule], default: [G], [Module] }	true	true
default-export-runtime	{ default }	'default'	undefined	undefined	true	undefined	{ default }	[Module: null prototype] { [__esModule], default: [G] { default }, [Module] }	'default'	'default'	undefined	undefined	undefined	undefined	undefined	{ default }	false	false
named-and-default-export named-and-default-export-duplicate named-and-default-export-reexport	{ named, default }	{ named, default }	'named'	'named'	true + warnings	true	[Module: null prototype] { [__esModule], named: [G], default: [G] { named, default }, [Module] }	[Module: null prototype] { [__esModule], named: [G], default: [G] { named, default }, [Module] }	'default'	'default'	'named'	'named'	'named'	undefined	undefined	{ named, default }	false	false
named-and-default-export-babel-getter	'default'	'default'	'named'	'named'	true	true	{ [__esModule], named: [G], default: [G] }	{ [__esModule], named: [G], default: [G] }	'default'	'default'	'named'	'named'	'named'	true	true	{ [__esModule], named: [G], default: [G] }	true	true
named-and-default-export-esModule named-and-default-export-esModule-duplicate named-and-default-export-esModule-reexport named-and-default-export-runtime-esModule	'default'	'default'	'named'	'named'	true	true	{ [__esModule], named, default }	{ [__esModule], named, default }	'default'	'default'	'named'	'named'	'named'	true	true	{ [__esModule], named, default }	true	true
named-and-default-export-esModule-esm-reexport	undefined + warnings	undefined	'named'	'named'	true	true	{ [__esModule], named: [G], [Module] }	{ [__esModule], named: [G], [Module] }	undefined	undefined	'named'	'named'	'named'	true	true	{ [__esModule], named: [G], [Module] }	true	true
named-and-default-export-esm	'default'	'default'	'named'	'named'	true + warnings	true	{ [__esModule], default: [G], named: [G], [Module] }	{ [__esModule], default: [G], named: [G], [Module] }	'default'	'default'	'named'	'named'	'named'	true	true	{ [__esModule], default: [G], named: [G], [Module] }	true	true
named-and-default-export-esm-esm-reexport named-and-default-export-esm-reexport named-export-esm	undefined + warnings	undefined	'named'	'named'	true + warnings	true	{ [__esModule], named: [G], [Module] }	{ [__esModule], named: [G], [Module] }	undefined	undefined	'named'	'named'	'named'	true	true	{ [__esModule], named: [G], [Module] }	true	true
named-and-default-export-getter	{ [named]: [G], [default]: [G] }	{ [named]: [G], [default]: [G] }	'named'	'named'	true + warnings	true	[Module: null prototype] { [__esModule], named: [G], default: [G] { [named]: [G], [default]: [G] }, [Module] }	[Module: null prototype] { [__esModule], named: [G], default: [G] { [named]: [G], [default]: [G] }, [Module] }	'default'	'default'	'named'	'named'	'named'	undefined	undefined	{ [named]: [G], [default]: [G] }	false	false
named-and-default-export-getter-esModule	'default'	'default'	'named'	'named'	true	true	{ [__esModule]: [G: true], [named]: [G], [default]: [G] }	{ [__esModule]: [G: true], [named]: [G], [default]: [G] }	'default'	'default'	'named'	'named'	'named'	true	true	{ [__esModule]: [G: true], [named]: [G], [default]: [G] }	true	true
named-and-default-export-inherited named-and-default-export-runtime single-object-with-default-export single-object-with-default-export-duplicate	{ named, default }	'default'	'named'	'named'	true	undefined	{ named, default }	[Module: null prototype] { [__esModule], named: [G], default: [G] { named, default }, [Module] }	'default'	'default'	'named'	'named'	'named'	undefined	undefined	{ named, default }	false	false
named-and-default-export-live	{ named, default }	{ named, default }	'named'	'named'	true + warnings	true	[Module: null prototype] { [__esModule], named: [G], default: [G] { named, default }, [Module] }	[Module: null prototype] { [__esModule], named: [G], default: [G] { named, default }, [Module] }	'default'	'default'	'named-outdated'	'named'	'named'	undefined	undefined	{ named, default }	false	false
named-and-default-export-non-enumerable	{ [named], [default] }	{ [named], [default] }	'named'	'named'	true + warnings	true	[Module: null prototype] { [__esModule], named: [G], default: [G] { [named], [default] }, [Module] }	[Module: null prototype] { [__esModule], named: [G], default: [G] { [named], [default] }, [Module] }	'default'	'default'	'named'	'named'	'named'	undefined	undefined	{ [named], [default] }	false	false
named-and-default-export-non-enumerable-inherited	{ [named], [default] }	'default'	'named'	'named'	true	undefined	{ [named], [default] }	[Module: null prototype] { [__esModule], named: [G], default: [G] { [named], [default] }, [Module] }	'default'	'default'	'named'	'named'	'named'	undefined	undefined	{ [named], [default] }	false	false
named-and-null-default-export	{ named, default: null }	{ named, default: null }	'named'	'named'	true + warnings	true	[Module: null prototype] { [__esModule], named: [G], default: [G] { named, default: null }, [Module] }	[Module: null prototype] { [__esModule], named: [G], default: [G] { named, default: null }, [Module] }	null	null	'named'	'named'	'named'	undefined	undefined	{ named, default: null }	false	false
named-and-null-default-export-esModule named-and-null-default-export-runtime-esModule	null	null	'named'	'named'	true	true	{ [__esModule], named, default: null }	{ [__esModule], named, default: null }	null	null	'named'	'named'	'named'	true	true	{ [__esModule], named, default: null }	true	true
named-and-null-default-export-non-enumerable	{ [named], [default]: null }	{ [named], [default]: null }	'named'	'named'	true + warnings	true	[Module: null prototype] { [__esModule], named: [G], default: [G] { [named], [default]: null }, [Module] }	[Module: null prototype] { [__esModule], named: [G], default: [G] { [named], [default]: null }, [Module] }	null	null	'named'	'named'	'named'	undefined	undefined	{ [named], [default]: null }	false	false
named-and-null-default-export-runtime single-object-with-null-default-export	{ named, default: null }	null	'named'	'named'	true	undefined	{ named, default: null }	[Module: null prototype] { [__esModule], named: [G], default: [G] { named, default: null }, [Module] }	null	null	'named'	'named'	'named'	undefined	undefined	{ named, default: null }	false	false
named-export	{ named }	{ named }	'named'	'named'	true + warnings	true	[Module: null prototype] { [__esModule], named: [G], default: [G] { named }, [Module] }	[Module: null prototype] { [__esModule], named: [G], default: [G] { named }, [Module] }	undefined	undefined	'named'	'named'	'named'	undefined	undefined	{ named }	false	false
named-export-esModule	undefined + warnings	undefined	'named'	'named'	true	true	{ [__esModule], named }	{ [__esModule], named }	undefined	undefined	'named'	'named'	'named'	true	true	{ [__esModule], named }	true	true
named-export-non-enumerable	{ [named] }	{ [named] }	'named'	'named'	true + warnings	true	[Module: null prototype] { [__esModule], named: [G], default: [G] { [named] }, [Module] }	[Module: null prototype] { [__esModule], named: [G], default: [G] { [named] }, [Module] }	undefined	undefined	'named'	'named'	'named'	undefined	undefined	{ [named] }	false	false
named-export-runtime single-object-export	{ named }	undefined	'named'	'named'	true	undefined	{ named }	[Module: null prototype] { [__esModule], named: [G], default: [G] { named }, [Module] }	undefined	undefined	'named'	'named'	'named'	undefined	undefined	{ named }	false	false
named-export-runtime-esModule	undefined	undefined	'named'	'named'	true	true	{ [__esModule], named }	{ [__esModule], named }	undefined	undefined	'named'	'named'	'named'	true	true	{ [__esModule], named }	true	true
order	{ b, a, c }	{ b, a, c }	undefined + warnings	undefined	true + warnings	true	[Module: null prototype] { [__esModule], b: [G: 'b'], a: [G: 'a'], c: [G: 'c'], default: [G] { b, a, c }, [Module] }	[Module: null prototype] { [__esModule], b: [G: 'b'], a: [G: 'a'], c: [G: 'c'], default: [G] { b, a, c }, [Module] }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	{ b, a, c }	false	false
order-esModule	undefined + warnings	undefined	undefined + warnings	undefined	true	true	{ [__esModule], b, a, c }	{ [__esModule], b, a, c }	undefined	undefined	undefined	undefined	undefined	true	true	{ [__esModule], b, a, c }	true	true
order-esm	undefined + warnings	undefined	undefined + warnings	undefined	true + warnings	true	{ [__esModule], a: [G: 'a'], b: [G: 'b'], c: [G: 'c'], [Module] }	{ [__esModule], a: [G: 'a'], b: [G: 'b'], c: [G: 'c'], [Module] }	undefined	undefined	undefined	undefined	undefined	true	true	{ [__esModule], a: [G: 'a'], b: [G: 'b'], c: [G: 'c'], [Module] }	true	true
require-circular require-circular-self require-conditional-execution	{ default, named }	{ default, named }	'named'	'named'	true + warnings	true	[Module: null prototype] { [__esModule], default: [G] { default, named }, named: [G], [Module] }	[Module: null prototype] { [__esModule], default: [G] { default, named }, named: [G], [Module] }	'default'	'default'	'named'	'named'	'named'	undefined	undefined	{ default, named }	false	false
single-empty-string-export	''	undefined	undefined	undefined	true	undefined	''	[Module: null prototype] { [__esModule], default: [G: ''], [Module] }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	''	false	false
single-null-export	null	undefined	type error	undefined	true	undefined	null	[Module: null prototype] { [__esModule], default: [G: null], [Module] }	type error	undefined	type error	type error	undefined	type error	undefined	null	false	false
single-promise-object-export	Promise { { named } }	undefined	undefined	undefined	true	undefined	Promise { { named } }	{ named }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	Promise { { named } }	false	false
single-promise-object-with-default-export	Promise { { named, default } }	undefined	undefined	undefined	true	undefined	Promise { { named, default } }	{ named, default }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	Promise { { named, default } }	false	false
single-promise-string-export	Promise { 'single' }	undefined	undefined	undefined	true	undefined	Promise { 'single' }	'single'	undefined	undefined	undefined	undefined	undefined	undefined	undefined	Promise { 'single' }	false	false
single-string-export single-string-export-defined single-string-export-duplicate single-string-export-getter single-string-export-reexport	'single'	undefined	undefined	undefined	true	undefined	'single'	[Module: null prototype] { [__esModule], default: [G: 'single'], [Module] }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	'single'	false	false
single-string-export-esm-reexport	undefined + warnings	undefined	undefined	undefined	true	true	{ [__esModule], [Module] }	{ '0': [G: 's'], '1': [G: 'i'], '2': [G: 'n'], '3': [G: 'g'], '4': [G: 'l'], '5': [G: 'e'], [__esModule], [Module] }	undefined	undefined	undefined	undefined	undefined	true	true	{ '0': [G: 's'], '1': [G: 'i'], '2': [G: 'n'], '3': [G: 'g'], '4': [G: 'l'], '5': [G: 'e'], [__esModule], [Module] }	true	true
single-string-export-live	'single-outdated'	undefined	undefined	undefined	true	undefined	'single-outdated'	[Module: null prototype] { [__esModule], default: [G: 'single-outdated'], [Module] }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	'single-outdated'	false	false
tla-esModule tla-esModule-esm-reexport	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error
tla-esm	'default'	'default'	'named'	'named'	true + warnings	true	{ [__esModule], default: [G], named: [G], [Module] }	{ [__esModule], default: [G], named: [G], [Module] }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	Promise { { [__esModule], default: [G], named: [G], [Module] }, [Symbol(webpack exports)]: { [__esModule], default: [G], named: [G], [Module] }, [Symbol(webpack queues)]: { [Function (anonymous)] [length]: 1, [name]: '' } }	false	true
tla-esm-esm-reexport	undefined + warnings	undefined	'named'	'named'	true + warnings	true	{ [__esModule], named: [G], [Module] }	{ [__esModule], named: [G], [Module] }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	Promise { { [__esModule], named: [G], [Module] }, [Symbol(webpack exports)]: { [__esModule], named: [G], [Module] }, [Symbol(webpack queues)]: { [Function (anonymous)] [length]: 1, [name]: '' } }	false	true

Rollup

Version: @rollup/plugin-commonjs@24.1.0 rollup@3.21.3 node@20.0.0

rollup	import x import { default as x }	import * as x; x.default	import * as x; ident(x).default	import { named as x }	import * as x; x.named	import * as x; ident(x).named	import { __esModule as x }	import * as x; x.__esModule	import * as x; ident(x).__esModule	import * as x	import()	x = require(); x.default	x = require(); ident(x).default	{ named } = require()	x = require(); x.named	x = require(); ident(x).named	{ __esModule } = require() x = require(); x.__esModule	x = require(); ident(x).__esModule	x = require()	await import() === require()	import * as x; x === await import()
default-export default-export-runtime	{ default }	{ default }	{ default }	undefined	undefined	undefined	undefined	undefined	undefined	[Object: null prototype] { default: { default } }	[Object: null prototype] { default: { default } }	'default'	'default'	undefined	undefined	undefined	undefined	undefined	{ default }	false	true
default-export-esModule	'default'	'default'	'default'	undefined	undefined	undefined	true	true	undefined	[Object: null prototype] { default }	[Object: null prototype] { default }	'default'	'default'	undefined	undefined	undefined	true	true	{ [__esModule], default }	false	true
default-export-esModule-esm-reexport	compilation error	undefined + warnings	undefined	undefined	undefined	undefined	true	true	undefined	[Object: null prototype] {}	{}	undefined	undefined	undefined	undefined	undefined	true	true	{ [__esModule] }	false	true
default-export-esm	'default'	'default'	'default'	compilation error	undefined + warnings	undefined	compilation error	undefined + warnings	undefined	[Object: null prototype] { default }	{ default }	'default'	'default'	undefined	undefined	undefined	true	true	{ [__esModule], default: [G] }	false	true
named-and-default-export	{ named, default }	{ named, default }	{ named, default }	'named'	'named'	'named'	undefined	undefined	undefined	[Object: null prototype] { default: { named, default }, named }	[Object: null prototype] { default: { named, default }, named }	'default'	'default'	'named'	'named'	'named'	undefined	undefined	{ named, default }	false	true
named-and-default-export-babel-getter	'default'	'default'	'default'	'named'	'named'	'named'	true	true	undefined	[Object: null prototype] { default, named: [G] }	[Object: null prototype] { default, named: [G] }	'default'	'default'	'named'	'named'	'named'	true	true	{ [__esModule], named: [G], default: [G] }	false	true
named-and-default-export-duplicate named-and-default-export-reexport named-and-default-export-runtime single-object-with-default-export single-object-with-default-export-duplicate	{ named, default }	{ named, default }	{ named, default }	'named'	'named'	'named'	undefined	undefined	undefined	[Object: null prototype] { default: { named, default }, named: [G] }	[Object: null prototype] { default: { named, default }, named: [G] }	'default'	'default'	'named'	'named'	'named'	undefined	undefined	{ named, default }	false	true
named-and-default-export-esModule	'default'	'default'	'default'	'named'	'named'	'named'	true	true	undefined	[Object: null prototype] { default, named }	[Object: null prototype] { default, named }	'default'	'default'	'named'	'named'	'named'	true	true	{ [__esModule], named, default }	false	true
named-and-default-export-esModule-duplicate	'default'	'default'	'default'	'named'	'named'	'named'	true	true	undefined	[Object: null prototype] { default: [G], named: [G] }	[Object: null prototype] { default: [G], named: [G] }	'default'	'default'	'named'	'named'	'named'	true	true	{ [__esModule], named, default }	false	true
named-and-default-export-esModule-esm-reexport	compilation error	undefined + warnings	undefined	'named'	'named'	'named'	true	true	undefined	[Object: null prototype] { named }	{ named }	undefined	undefined	'named'	'named'	'named'	true	true	{ [__esModule], named: [G] }	false	true
named-and-default-export-esModule-reexport named-and-default-export-runtime-esModule	'default'	'default'	'default'	'named'	'named'	'named'	true	true	undefined	[Object: null prototype] { default, named: [G] }	[Object: null prototype] { default, named: [G] }	'default'	'default'	'named'	'named'	'named'	true	true	{ [__esModule], named, default }	false	true
named-and-default-export-esm	'default'	'default'	'default'	'named'	'named'	'named'	compilation error	undefined + warnings	undefined	[Object: null prototype] { default, named }	{ default, named }	'default'	'default'	'named'	'named'	'named'	true	true	{ [__esModule], default: [G], named: [G] }	false	true
named-and-default-export-esm-esm-reexport named-export-esm	compilation error	undefined + warnings	undefined	'named'	'named'	'named'	compilation error	undefined + warnings	undefined	[Object: null prototype] { named }	{ named }	undefined	undefined	'named'	'named'	'named'	true	true	{ [__esModule], named: [G] }	false	true
named-and-default-export-esm-reexport	compilation error	undefined + warnings	undefined	'named'	'named'	'named'	undefined	undefined	undefined	[Object: null prototype] { named }	{ named }	undefined	undefined	'named'	'named'	'named'	true	true	{ [__esModule], named: [G] }	false	true
named-and-default-export-getter	{ [named]: [G], [default]: [G] }	{ [named]: [G], [default]: [G] }	{ [named]: [G], [default]: [G] }	'named'	'named'	undefined	undefined	undefined	undefined	[Object: null prototype] { default: { [named]: [G], [default]: [G] } }	[Object: null prototype] { default: { [named]: [G], [default]: [G] } }	'default'	'default'	'named'	'named'	'named'	undefined	undefined	{ [named]: [G], [default]: [G] }	false	true
named-and-default-export-getter-esModule	'default'	'default'	'default'	'named'	'named'	undefined	true	true	undefined	[Object: null prototype] { default }	[Object: null prototype] { default }	'default'	'default'	'named'	'named'	'named'	true	true	{ [__esModule]: [G: true], [named]: [G], [default]: [G] }	false	true
named-and-default-export-inherited	{ named, default }	{ named, default }	{ named, default }	'named'	'named'	undefined	undefined	undefined	undefined	[Object: null prototype] { default: { named, default } }	[Object: null prototype] { default: { named, default } }	'default'	'default'	'named'	'named'	'named'	undefined	undefined	{ named, default }	false	true
named-and-default-export-live	{ named, default }	{ named, default }	{ named, default }	'named'	'named'	'named'	undefined	undefined	undefined	[Object: null prototype] { default: { named, default }, named: [G] }	[Object: null prototype] { default: { named, default }, named: [G] }	'default'	'default'	'named-outdated'	'named'	'named'	undefined	undefined	{ named, default }	false	true
named-and-default-export-non-enumerable named-and-default-export-non-enumerable-inherited	{ [named], [default] }	{ [named], [default] }	{ [named], [default] }	'named'	'named'	undefined	undefined	undefined	undefined	[Object: null prototype] { default: { [named], [default] } }	[Object: null prototype] { default: { [named], [default] } }	'default'	'default'	'named'	'named'	'named'	undefined	undefined	{ [named], [default] }	false	true
named-and-null-default-export	{ named, default: null }	{ named, default: null }	{ named, default: null }	'named'	'named'	'named'	undefined	undefined	undefined	[Object: null prototype] { default: { named, default: null }, named }	[Object: null prototype] { default: { named, default: null }, named }	null	null	'named'	'named'	'named'	undefined	undefined	{ named, default: null }	false	true
named-and-null-default-export-esModule	null	null	null	'named'	'named'	'named'	true	true	undefined	[Object: null prototype] { default: null, named }	[Object: null prototype] { default: null, named }	null	null	'named'	'named'	'named'	true	true	{ [__esModule], named, default: null }	false	true
named-and-null-default-export-non-enumerable	{ [named], [default]: null }	{ [named], [default]: null }	{ [named], [default]: null }	'named'	'named'	undefined	undefined	undefined	undefined	[Object: null prototype] { default: { [named], [default]: null } }	[Object: null prototype] { default: { [named], [default]: null } }	null	null	'named'	'named'	'named'	undefined	undefined	{ [named], [default]: null }	false	true
named-and-null-default-export-runtime single-object-with-null-default-export	{ named, default: null }	{ named, default: null }	{ named, default: null }	'named'	'named'	'named'	undefined	undefined	undefined	[Object: null prototype] { default: { named, default: null }, named: [G] }	[Object: null prototype] { default: { named, default: null }, named: [G] }	null	null	'named'	'named'	'named'	undefined	undefined	{ named, default: null }	false	true
named-and-null-default-export-runtime-esModule	null	null	null	'named'	'named'	'named'	true	true	undefined	[Object: null prototype] { default: null, named: [G] }	[Object: null prototype] { default: null, named: [G] }	null	null	'named'	'named'	'named'	true	true	{ [__esModule], named, default: null }	false	true
named-export	{ named }	{ named }	{ named }	'named'	'named'	'named'	undefined	undefined	undefined	[Object: null prototype] { default: { named }, named }	[Object: null prototype] { default: { named }, named }	undefined	undefined	'named'	'named'	'named'	undefined	undefined	{ named }	false	true
named-export-esModule	{ [__esModule], named }	{ [__esModule], named }	{ [__esModule], named }	'named'	'named'	'named'	true	true	undefined	[Object: null prototype] { default: { [__esModule], named }, named }	[Object: null prototype] { default: { [__esModule], named }, named }	undefined	undefined	'named'	'named'	'named'	true	true	{ [__esModule], named }	false	true
named-export-non-enumerable	{ [named] }	{ [named] }	{ [named] }	'named'	'named'	undefined	undefined	undefined	undefined	[Object: null prototype] { default: { [named] } }	[Object: null prototype] { default: { [named] } }	undefined	undefined	'named'	'named'	'named'	undefined	undefined	{ [named] }	false	true
named-export-runtime single-object-export	{ named }	{ named }	{ named }	'named'	'named'	'named'	undefined	undefined	undefined	[Object: null prototype] { default: { named }, named: [G] }	[Object: null prototype] { default: { named }, named: [G] }	undefined	undefined	'named'	'named'	'named'	undefined	undefined	{ named }	false	true
named-export-runtime-esModule	{ [__esModule], named }	{ [__esModule], named }	{ [__esModule], named }	'named'	'named'	'named'	true	true	undefined	[Object: null prototype] { default: { [__esModule], named }, named: [G] }	[Object: null prototype] { default: { [__esModule], named }, named: [G] }	undefined	undefined	'named'	'named'	'named'	true	true	{ [__esModule], named }	false	true
order	{ b, a, c }	{ b, a, c }	{ b, a, c }	undefined	undefined	undefined	undefined	undefined	undefined	[Object: null prototype] { a, b, c, default: { b, a, c } }	[Object: null prototype] { a, b, c, default: { b, a, c } }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	{ b, a, c }	false	true
order-esModule	{ [__esModule], b, a, c }	{ [__esModule], b, a, c }	{ [__esModule], b, a, c }	undefined	undefined	undefined	true	true	undefined	[Object: null prototype] { a, b, c, default: { [__esModule], b, a, c } }	[Object: null prototype] { a, b, c, default: { [__esModule], b, a, c } }	undefined	undefined	undefined	undefined	undefined	true	true	{ [__esModule], b, a, c }	false	true
order-esm	compilation error	undefined + warnings	undefined	compilation error	undefined + warnings	undefined	compilation error	undefined + warnings	undefined	[Object: null prototype] { a, b, c }	{ a, b, c }	undefined	undefined	undefined	undefined	undefined	true	true	{ [__esModule], a: [G: 'a'], b: [G: 'b'], c: [G: 'c'] }	false	true
require-circular require-circular-self	{ default, named } + warnings	{ default, named } + warnings	{ default, named } + warnings	'named' + warnings	'named' + warnings	'named' + warnings	undefined + warnings	undefined + warnings	undefined + warnings	[Object: null prototype] { default: { default, named }, named: [G] } + warnings	[Object: null prototype] { default: { default, named }, named: [G] } + warnings	'default' + warnings	'default' + warnings	'named' + warnings	'named' + warnings	'named' + warnings	undefined + warnings	undefined + warnings	{ default, named } + warnings	false + warnings	true + warnings
require-conditional-execution	{ default, named }	{ default, named }	{ default, named }	'named'	'named'	'named'	undefined	undefined	undefined	[Object: null prototype] { default: { default, named }, named: [G] }	[Object: null prototype] { default: { default, named }, named: [G] }	'default'	'default'	'named'	'named'	'named'	undefined	undefined	{ default, named }	false	true
single-empty-string-export	''	''	''	undefined	undefined	undefined	undefined	undefined	undefined	[Object: null prototype] { default: '' }	[Object: null prototype] { default: '' }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	''	false	true
single-null-export	null	null	null	type error	type error	undefined	type error	type error	undefined	[Object: null prototype] { default: null }	[Object: null prototype] { default: null }	type error	undefined	type error	type error	undefined	type error	undefined	null	false	true
single-promise-object-export	Promise { { named } }	Promise { { named } }	Promise { { named } }	undefined	undefined	undefined	undefined	undefined	undefined	[Object: null prototype] { default: Promise { { named } } }	[Object: null prototype] { default: Promise { { named } } }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	Promise { { named } }	false	true
single-promise-object-with-default-export	Promise { { named, default } }	Promise { { named, default } }	Promise { { named, default } }	undefined	undefined	undefined	undefined	undefined	undefined	[Object: null prototype] { default: Promise { { named, default } } }	[Object: null prototype] { default: Promise { { named, default } } }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	Promise { { named, default } }	false	true
single-promise-string-export	Promise { 'single' }	Promise { 'single' }	Promise { 'single' }	undefined	undefined	undefined	undefined	undefined	undefined	[Object: null prototype] { default: Promise { 'single' } }	[Object: null prototype] { default: Promise { 'single' } }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	Promise { 'single' }	false	true
single-string-export single-string-export-defined single-string-export-duplicate single-string-export-getter single-string-export-reexport	'single'	'single'	'single'	undefined	undefined	undefined	undefined	undefined	undefined	[Object: null prototype] { default: 'single' }	[Object: null prototype] { default: 'single' }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	'single'	false	true
single-string-export-esm-reexport	compilation error	undefined + warnings	undefined	undefined	undefined	undefined	undefined	undefined	undefined	[Object: null prototype] {}	{}	undefined	undefined	undefined	undefined	undefined	true	true	{ [__esModule] }	false	true
single-string-export-live	'single-outdated'	'single-outdated'	'single-outdated'	undefined	undefined	undefined	undefined	undefined	undefined	[Object: null prototype] { default: 'single-outdated' }	[Object: null prototype] { default: 'single-outdated' }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	'single-outdated'	false	true
tla-esModule tla-esModule-esm-reexport tla-esm tla-esm-esm-reexport	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error

esbuild

Version: esbuild@0.17.18 node@20.0.0

esbuild	import x import { default as x }	import * as x; x.default import * as x; ident(x).default	import { named as x }	import * as x; x.named import * as x; ident(x).named x = require(); ident(x).named	import { __esModule as x }	import * as x; x.__esModule import * as x; ident(x).__esModule	import * as x	import()	x = require(); x.default	x = require(); ident(x).default	{ named } = require()	x = require(); x.named	{ __esModule } = require() x = require(); x.__esModule	x = require(); ident(x).__esModule	x = require()	await import() === require()	import * as x; x === await import()
default-export default-export-runtime	{ default }	{ default }	undefined	undefined	undefined	undefined	{ default: { default } }	{ default: { default } }	'default'	'default'	undefined	undefined	undefined	undefined	{ default }	false	false
default-export-esModule	{ [__esModule], default }	{ [__esModule], default }	undefined	undefined	true	true	{ default: { [__esModule], default }, [__esModule]: [G: true] }	{ default: { [__esModule], default }, [__esModule]: [G: true] }	'default'	'default'	undefined	undefined	true	true	{ [__esModule], default }	false	false
default-export-esModule-esm-reexport	undefined	undefined	undefined	undefined	true	true	{ [__esModule]: [G: true] }	{ [__esModule]: [G: true] }	undefined	undefined	undefined	undefined	true	true	{ [__esModule] }	false	true
default-export-esm	'default'	'default'	compilation error	undefined	compilation error	undefined	{ default: [G] }	{ default: [G] }	'default'	'default'	undefined	undefined	true	true	{ [__esModule], default: [G] }	false	true
named-and-default-export named-and-default-export-duplicate named-and-default-export-reexport named-and-default-export-runtime single-object-with-default-export single-object-with-default-export-duplicate	{ named, default }	{ named, default }	'named'	'named'	undefined	undefined	{ default: { named, default }, named: [G] }	{ default: { named, default }, named: [G] }	'default'	'default'	'named'	'named'	undefined	undefined	{ named, default }	false	false
named-and-default-export-babel-getter	{ [__esModule], named: [G], default: [G] }	{ [__esModule], named: [G], default: [G] }	'named'	'named'	true	true	{ default: { [__esModule], named: [G], default: [G] }, [__esModule]: [G: true], named: [G] }	{ default: { [__esModule], named: [G], default: [G] }, [__esModule]: [G: true], named: [G] }	'default'	'default'	'named'	'named'	true	true	{ [__esModule], named: [G], default: [G] }	false	false
named-and-default-export-esModule named-and-default-export-esModule-duplicate named-and-default-export-esModule-reexport named-and-default-export-runtime-esModule	{ [__esModule], named, default }	{ [__esModule], named, default }	'named'	'named'	true	true	{ default: { [__esModule], named, default }, [__esModule]: [G: true], named: [G] }	{ default: { [__esModule], named, default }, [__esModule]: [G: true], named: [G] }	'default'	'default'	'named'	'named'	true	true	{ [__esModule], named, default }	false	false
named-and-default-export-esModule-esm-reexport	undefined	undefined	'named'	'named'	true	true	{ [__esModule]: [G: true], named: [G] }	{ [__esModule]: [G: true], named: [G] }	undefined	undefined	'named'	'named'	true	true	{ [__esModule], named: [G] }	false	true
named-and-default-export-esm	'default'	'default'	'named'	'named'	compilation error	undefined	{ default: [G], named: [G] }	{ default: [G], named: [G] }	'default'	'default'	'named'	'named'	true	true	{ [__esModule], default: [G], named: [G] }	false	true
named-and-default-export-esm-esm-reexport named-export-esm	compilation error	undefined	'named'	'named'	compilation error	undefined	{ named: [G] }	{ named: [G] }	undefined	undefined	'named'	'named'	true	true	{ [__esModule], named: [G] }	false	true
named-and-default-export-esm-reexport	undefined	undefined	'named'	'named'	undefined	undefined	{ named: [G] }	{ named: [G] }	undefined	undefined	'named'	'named'	true	true	{ [__esModule], named: [G] }	false	true
named-and-default-export-getter	{ [named]: [G], [default]: [G] }	{ [named]: [G], [default]: [G] }	'named'	'named'	undefined	undefined	{ default: { [named]: [G], [default]: [G] }, [named]: [G] }	{ default: { [named]: [G], [default]: [G] }, [named]: [G] }	'default'	'default'	'named'	'named'	undefined	undefined	{ [named]: [G], [default]: [G] }	false	false
named-and-default-export-getter-esModule	{ [__esModule]: [G: true], [named]: [G], [default]: [G] }	{ [__esModule]: [G: true], [named]: [G], [default]: [G] }	'named'	'named'	true	true	{ default: { [__esModule]: [G: true], [named]: [G], [default]: [G] }, [__esModule]: [G: true], [named]: [G] }	{ default: { [__esModule]: [G: true], [named]: [G], [default]: [G] }, [__esModule]: [G: true], [named]: [G] }	'default'	'default'	'named'	'named'	true	true	{ [__esModule]: [G: true], [named]: [G], [default]: [G] }	false	false
named-and-default-export-inherited	{ named, default }	{ named, default }	'named'	'named'	undefined	undefined	{ default: { named, default }, named }	{ default: { named, default }, named }	'default'	'default'	'named'	'named'	undefined	undefined	{ named, default }	false	false
named-and-default-export-live	{ named, default }	{ named, default }	'named'	'named'	undefined	undefined	{ default: { named, default }, named: [G] }	{ default: { named, default }, named: [G] }	'default'	'default'	'named-outdated'	'named'	undefined	undefined	{ named, default }	false	false
named-and-default-export-non-enumerable	{ [named], [default] }	{ [named], [default] }	'named'	'named'	undefined	undefined	{ default: { [named], [default] }, [named]: [G] }	{ default: { [named], [default] }, [named]: [G] }	'default'	'default'	'named'	'named'	undefined	undefined	{ [named], [default] }	false	false
named-and-default-export-non-enumerable-inherited	{ [named], [default] }	{ [named], [default] }	'named'	'named'	undefined	undefined	{ default: { [named], [default] }, [named] }	{ default: { [named], [default] }, [named] }	'default'	'default'	'named'	'named'	undefined	undefined	{ [named], [default] }	false	false
named-and-null-default-export named-and-null-default-export-runtime single-object-with-null-default-export	{ named, default: null }	{ named, default: null }	'named'	'named'	undefined	undefined	{ default: { named, default: null }, named: [G] }	{ default: { named, default: null }, named: [G] }	null	null	'named'	'named'	undefined	undefined	{ named, default: null }	false	false
named-and-null-default-export-esModule named-and-null-default-export-runtime-esModule	{ [__esModule], named, default: null }	{ [__esModule], named, default: null }	'named'	'named'	true	true	{ default: { [__esModule], named, default: null }, [__esModule]: [G: true], named: [G] }	{ default: { [__esModule], named, default: null }, [__esModule]: [G: true], named: [G] }	null	null	'named'	'named'	true	true	{ [__esModule], named, default: null }	false	false
named-and-null-default-export-non-enumerable	{ [named], [default]: null }	{ [named], [default]: null }	'named'	'named'	undefined	undefined	{ default: { [named], [default]: null }, [named]: [G] }	{ default: { [named], [default]: null }, [named]: [G] }	null	null	'named'	'named'	undefined	undefined	{ [named], [default]: null }	false	false
named-export named-export-runtime single-object-export	{ named }	{ named }	'named'	'named'	undefined	undefined	{ default: { named }, named: [G] }	{ default: { named }, named: [G] }	undefined	undefined	'named'	'named'	undefined	undefined	{ named }	false	false
named-export-esModule named-export-runtime-esModule	{ [__esModule], named }	{ [__esModule], named }	'named'	'named'	true	true	{ default: { [__esModule], named }, [__esModule]: [G: true], named: [G] }	{ default: { [__esModule], named }, [__esModule]: [G: true], named: [G] }	undefined	undefined	'named'	'named'	true	true	{ [__esModule], named }	false	false
named-export-non-enumerable	{ [named] }	{ [named] }	'named'	'named'	undefined	undefined	{ default: { [named] }, [named]: [G] }	{ default: { [named] }, [named]: [G] }	undefined	undefined	'named'	'named'	undefined	undefined	{ [named] }	false	false
order	{ b, a, c }	{ b, a, c }	undefined	undefined	undefined	undefined	{ default: { b, a, c }, b: [G: 'b'], a: [G: 'a'], c: [G: 'c'] }	{ default: { b, a, c }, b: [G: 'b'], a: [G: 'a'], c: [G: 'c'] }	undefined	undefined	undefined	undefined	undefined	undefined	{ b, a, c }	false	false
order-esModule	{ [__esModule], b, a, c }	{ [__esModule], b, a, c }	undefined	undefined	true	true	{ default: { [__esModule], b, a, c }, [__esModule]: [G: true], b: [G: 'b'], a: [G: 'a'], c: [G: 'c'] }	{ default: { [__esModule], b, a, c }, [__esModule]: [G: true], b: [G: 'b'], a: [G: 'a'], c: [G: 'c'] }	undefined	undefined	undefined	undefined	true	true	{ [__esModule], b, a, c }	false	false
order-esm	compilation error	undefined	compilation error	undefined	compilation error	undefined	{ a: [G: 'a'], b: [G: 'b'], c: [G: 'c'] }	{ a: [G: 'a'], b: [G: 'b'], c: [G: 'c'] }	undefined	undefined	undefined	undefined	true	true	{ [__esModule], a: [G: 'a'], b: [G: 'b'], c: [G: 'c'] }	false	true
require-circular require-circular-self require-conditional-execution	{ default, named }	{ default, named }	'named'	'named'	undefined	undefined	{ default: { default, named }, named: [G] }	{ default: { default, named }, named: [G] }	'default'	'default'	'named'	'named'	undefined	undefined	{ default, named }	false	false
single-empty-string-export	''	''	undefined	undefined	undefined	undefined	String { default: '' }	String { default: '' }	undefined	undefined	undefined	undefined	undefined	undefined	''	false	false
single-null-export	null	null	undefined	undefined	undefined	undefined	{ default: null }	{ default: null }	type error	undefined	type error	type error	type error	undefined	null	false	false
single-promise-object-export	Promise { { named } }	Promise { { named } }	undefined	undefined	undefined	undefined	Promise { default: Promise { { named } } }	type error	undefined	undefined	undefined	undefined	undefined	undefined	Promise { { named } }	type error	type error
single-promise-object-with-default-export	Promise { { named, default } }	Promise { { named, default } }	undefined	undefined	undefined	undefined	Promise { default: Promise { { named, default } } }	type error	undefined	undefined	undefined	undefined	undefined	undefined	Promise { { named, default } }	type error	type error
single-promise-string-export	Promise { 'single' }	Promise { 'single' }	undefined	undefined	undefined	undefined	Promise { default: Promise { 'single' } }	type error	undefined	undefined	undefined	undefined	undefined	undefined	Promise { 'single' }	type error	type error
single-string-export single-string-export-defined single-string-export-duplicate single-string-export-getter single-string-export-reexport	'single'	'single'	undefined	undefined	undefined	undefined	String { default: 'single' }	String { default: 'single' }	undefined	undefined	undefined	undefined	undefined	undefined	'single'	false	false
single-string-export-esm-reexport	undefined	undefined	undefined	undefined	undefined	undefined	{}	{}	undefined	undefined	undefined	undefined	true	true	{ [__esModule] }	false	true
single-string-export-live	'single-outdated'	'single-outdated'	undefined	undefined	undefined	undefined	String { default: 'single-outdated' }	String { default: 'single-outdated' }	undefined	undefined	undefined	undefined	undefined	undefined	'single-outdated'	false	false
tla-esModule tla-esModule-esm-reexport tla-esm tla-esm-esm-reexport	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error

Webpack 4

normal

When not using the .mjs extension.

Version: webpack@4.46.0 node@20.0.0

webpack4	import x import { default as x } import * as x; x.default	import * as x; ident(x).default x = require(); ident(x).default	import { named as x } import * as x; x.named	import * as x; ident(x).named x = require(); ident(x).named	import { __esModule as x } import * as x; x.__esModule	import * as x; ident(x).__esModule x = require(); ident(x).__esModule	import * as x	import()	x = require(); x.default	{ named } = require()	x = require(); x.named	{ __esModule } = require() x = require(); x.__esModule	x = require()	await import() === require() import * as x; x === await import()
default-export default-export-runtime	{ default }	'default'	undefined	undefined	undefined	undefined	{ default }	[Module: null prototype] { [__esModule], default: { default }, [Module] }	'default'	undefined	undefined	undefined	{ default }	false
default-export-esModule	'default'	'default'	undefined	undefined	true	true	{ [__esModule], default }	{ [__esModule], default }	'default'	undefined	undefined	true	{ [__esModule], default }	true
default-export-esModule-esm-reexport	undefined	undefined	undefined	undefined	true	true	{ [__esModule], [Module] }	{ [__esModule], [Module] }	undefined	undefined	undefined	true	{ [__esModule], [Module] }	true
default-export-esm	'default'	'default'	undefined + warnings	undefined	undefined + warnings	true	{ [__esModule], default: [G], [Module] }	{ [__esModule], default, [Module] }	'default'	undefined	undefined	true	{ [__esModule], default, [Module] }	true
named-and-default-export named-and-default-export-duplicate named-and-default-export-inherited named-and-default-export-reexport named-and-default-export-runtime single-object-with-default-export single-object-with-default-export-duplicate	{ named, default }	'default'	'named'	'named'	undefined	undefined	{ named, default }	[Module: null prototype] { [__esModule], default: { named, default }, named: [G], [Module] }	'default'	'named'	'named'	undefined	{ named, default }	false
named-and-default-export-babel-getter	'default'	'default'	'named'	'named'	true	true	{ [__esModule], named: [G], default: [G] }	{ [__esModule], named: [G], default: [G] }	'default'	'named'	'named'	true	{ [__esModule], named: [G], default: [G] }	true
named-and-default-export-esModule named-and-default-export-esModule-duplicate named-and-default-export-esModule-reexport named-and-default-export-runtime-esModule	'default'	'default'	'named'	'named'	true	true	{ [__esModule], named, default }	{ [__esModule], named, default }	'default'	'named'	'named'	true	{ [__esModule], named, default }	true
named-and-default-export-esModule-esm-reexport	undefined	undefined	'named'	'named'	true	true	{ [__esModule], named: [G], [Module] }	{ [__esModule], named: [G], [Module] }	undefined	'named'	'named'	true	{ [__esModule], named: [G], [Module] }	true
named-and-default-export-esm	'default'	'default'	'named'	'named'	undefined + warnings	true	{ [__esModule], named: [G], default: [G], [Module] }	{ [__esModule], named: [G], default, [Module] }	'default'	'named'	'named'	true	{ [__esModule], named: [G], default, [Module] }	true
named-and-default-export-esm-esm-reexport named-export-esm	undefined + warnings	undefined	'named'	'named'	undefined + warnings	true	{ [__esModule], named: [G], [Module] }	{ [__esModule], named: [G], [Module] }	undefined	'named'	'named'	true	{ [__esModule], named: [G], [Module] }	true
named-and-default-export-esm-reexport	undefined	undefined	'named'	'named'	undefined	true	{ [__esModule], named: [G], [Module] }	{ [__esModule], named: [G], [Module] }	undefined	'named'	'named'	true	{ [__esModule], named: [G], [Module] }	true
named-and-default-export-getter	{ [named]: [G], [default]: [G] }	'default'	'named'	'named'	undefined	undefined	{ [named]: [G], [default]: [G] }	[Module: null prototype] { [__esModule], default: { [named]: [G], [default]: [G] }, [Module] }	'default'	'named'	'named'	undefined	{ [named]: [G], [default]: [G] }	false
named-and-default-export-getter-esModule	'default'	'default'	'named'	'named'	true	true	{ [__esModule]: [G: true], [named]: [G], [default]: [G] }	{ [__esModule]: [G: true], [named]: [G], [default]: [G] }	'default'	'named'	'named'	true	{ [__esModule]: [G: true], [named]: [G], [default]: [G] }	true
named-and-default-export-live	{ named, default }	'default'	'named'	'named'	undefined	undefined	{ named, default }	[Module: null prototype] { [__esModule], default: { named, default }, named: [G], [Module] }	'default'	'named-outdated'	'named'	undefined	{ named, default }	false
named-and-default-export-non-enumerable named-and-default-export-non-enumerable-inherited	{ [named], [default] }	'default'	'named'	'named'	undefined	undefined	{ [named], [default] }	[Module: null prototype] { [__esModule], default: { [named], [default] }, [Module] }	'default'	'named'	'named'	undefined	{ [named], [default] }	false
named-and-null-default-export named-and-null-default-export-runtime single-object-with-null-default-export	{ named, default: null }	null	'named'	'named'	undefined	undefined	{ named, default: null }	[Module: null prototype] { [__esModule], default: { named, default: null }, named: [G], [Module] }	null	'named'	'named'	undefined	{ named, default: null }	false
named-and-null-default-export-esModule named-and-null-default-export-runtime-esModule	null	null	'named'	'named'	true	true	{ [__esModule], named, default: null }	{ [__esModule], named, default: null }	null	'named'	'named'	true	{ [__esModule], named, default: null }	true
named-and-null-default-export-non-enumerable	{ [named], [default]: null }	null	'named'	'named'	undefined	undefined	{ [named], [default]: null }	[Module: null prototype] { [__esModule], default: { [named], [default]: null }, [Module] }	null	'named'	'named'	undefined	{ [named], [default]: null }	false
named-export named-export-runtime single-object-export	{ named }	undefined	'named'	'named'	undefined	undefined	{ named }	[Module: null prototype] { [__esModule], default: { named }, named: [G], [Module] }	undefined	'named'	'named'	undefined	{ named }	false
named-export-esModule named-export-runtime-esModule	undefined	undefined	'named'	'named'	true	true	{ [__esModule], named }	{ [__esModule], named }	undefined	'named'	'named'	true	{ [__esModule], named }	true
named-export-non-enumerable	{ [named] }	undefined	'named'	'named'	undefined	undefined	{ [named] }	[Module: null prototype] { [__esModule], default: { [named] }, [Module] }	undefined	'named'	'named'	undefined	{ [named] }	false
order	{ b, a, c }	undefined	undefined	undefined	undefined	undefined	{ b, a, c }	[Module: null prototype] { [__esModule], default: { b, a, c }, b: [G: 'b'], a: [G: 'a'], c: [G: 'c'], [Module] }	undefined	undefined	undefined	undefined	{ b, a, c }	false
order-esModule	undefined	undefined	undefined	undefined	true	true	{ [__esModule], b, a, c }	{ [__esModule], b, a, c }	undefined	undefined	undefined	true	{ [__esModule], b, a, c }	true
order-esm	undefined + warnings	undefined	undefined + warnings	undefined	undefined + warnings	true	{ [__esModule], b: [G: 'b'], a: [G: 'a'], c: [G: 'c'], [Module] }	{ [__esModule], b: [G: 'b'], a: [G: 'a'], c: [G: 'c'], [Module] }	undefined	undefined	undefined	true	{ [__esModule], b: [G: 'b'], a: [G: 'a'], c: [G: 'c'], [Module] }	true
require-circular require-circular-self require-conditional-execution	{ default, named }	'default'	'named'	'named'	undefined	undefined	{ default, named }	[Module: null prototype] { [__esModule], default: { default, named }, named: [G], [Module] }	'default'	'named'	'named'	undefined	{ default, named }	false
single-empty-string-export	''	undefined	undefined	undefined	undefined	undefined	''	[Module: null prototype] { [__esModule], default: '', [Module] }	undefined	undefined	undefined	undefined	''	false
single-null-export	null	undefined	type error	undefined	type error	undefined	null	[Module: null prototype] { [__esModule], default: null, [Module] }	type error	type error	type error	type error	null	false
single-promise-object-export	Promise { { named } }	undefined	undefined	undefined	undefined	undefined	Promise { { named } }	[Module: null prototype] { [__esModule], default: Promise { { named } }, [Module] }	undefined	undefined	undefined	undefined	Promise { { named } }	false
single-promise-object-with-default-export	Promise { { named, default } }	undefined	undefined	undefined	undefined	undefined	Promise { { named, default } }	[Module: null prototype] { [__esModule], default: Promise { { named, default } }, [Module] }	undefined	undefined	undefined	undefined	Promise { { named, default } }	false
single-promise-string-export	Promise { 'single' }	undefined	undefined	undefined	undefined	undefined	Promise { 'single' }	[Module: null prototype] { [__esModule], default: Promise { 'single' }, [Module] }	undefined	undefined	undefined	undefined	Promise { 'single' }	false
single-string-export single-string-export-defined single-string-export-duplicate single-string-export-getter single-string-export-reexport	'single'	undefined	undefined	undefined	undefined	undefined	'single'	[Module: null prototype] { [__esModule], default: 'single', [Module] }	undefined	undefined	undefined	undefined	'single'	false
single-string-export-esm-reexport	undefined	undefined	undefined	undefined	undefined	true	{ '0': [G: 's'], '1': [G: 'i'], '2': [G: 'n'], '3': [G: 'g'], '4': [G: 'l'], '5': [G: 'e'], [__esModule], [Module] }	{ '0': [G: 's'], '1': [G: 'i'], '2': [G: 'n'], '3': [G: 'g'], '4': [G: 'l'], '5': [G: 'e'], [__esModule], [Module] }	undefined	undefined	undefined	true	{ '0': [G: 's'], '1': [G: 'i'], '2': [G: 'n'], '3': [G: 'g'], '4': [G: 'l'], '5': [G: 'e'], [__esModule], [Module] }	true
single-string-export-live	'single-outdated'	undefined	undefined	undefined	undefined	undefined	'single-outdated'	[Module: null prototype] { [__esModule], default: 'single-outdated', [Module] }	undefined	undefined	undefined	undefined	'single-outdated'	false
tla-esModule tla-esModule-esm-reexport tla-esm tla-esm-esm-reexport	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error

mjs extension

When using the .mjs extension.

Version: webpack@4.46.0 node@20.0.0

webpack4-mjs	import x import { default as x } import * as x; x.default	import * as x; ident(x).default	import { named as x } import * as x; x.named	import * as x; ident(x).named	import { __esModule as x } import * as x; x.__esModule	import * as x; ident(x).__esModule	import * as x	import()	x = require(); x.default	x = require(); ident(x).default	{ named } = require()	x = require(); x.named	x = require(); ident(x).named	{ __esModule } = require() x = require(); x.__esModule	x = require(); ident(x).__esModule	x = require()	await import() === require()	import * as x; x === await import()
default-export default-export-runtime	{ default }	{ default }	undefined + errors	undefined	undefined + errors	true	[Module: null prototype] { [__esModule], default: { default }, [Module] }	[Module: null prototype] { [__esModule], default: { default }, [Module] }	'default'	'default'	undefined	undefined	undefined	undefined	undefined	{ default }	false	false
default-export-esModule	{ [__esModule], default }	{ [__esModule], default }	undefined + errors	undefined	undefined + errors	true	[Module: null prototype] { [__esModule], default: { [__esModule], default }, [Module] }	[Module: null prototype] { [__esModule], default: { [__esModule], default }, [Module] }	'default'	'default'	undefined	undefined	undefined	true	true	{ [__esModule], default }	true	false
default-export-esModule-esm-reexport	undefined	undefined	undefined	undefined	true	true	{ [__esModule], [Module] }	{ [__esModule], [Module] }	undefined	undefined	undefined	undefined	undefined	true	true	{ [__esModule], [Module] }	true	true
default-export-esm	'default'	'default'	undefined + errors	undefined	undefined + errors	true	{ [__esModule], default: [G], [Module] }	{ [__esModule], default, [Module] }	'default'	'default'	undefined	undefined	undefined	true	true	{ [__esModule], default, [Module] }	true	true
named-and-default-export named-and-default-export-duplicate named-and-default-export-inherited named-and-default-export-reexport named-and-default-export-runtime single-object-with-default-export single-object-with-default-export-duplicate	{ named, default }	{ named, default }	undefined + errors	undefined	undefined + errors	true	[Module: null prototype] { [__esModule], default: { named, default }, [Module] }	[Module: null prototype] { [__esModule], default: { named, default }, [Module] }	'default'	'default'	'named'	'named'	'named'	undefined	undefined	{ named, default }	false	false
named-and-default-export-babel-getter	{ [__esModule], named: [G], default: [G] }	{ [__esModule], named: [G], default: [G] }	undefined + errors	undefined	undefined + errors	true	[Module: null prototype] { [__esModule], default: { [__esModule], named: [G], default: [G] }, [Module] }	[Module: null prototype] { [__esModule], default: { [__esModule], named: [G], default: [G] }, [Module] }	'default'	'default'	'named'	'named'	'named'	true	true	{ [__esModule], named: [G], default: [G] }	true	false
named-and-default-export-esModule named-and-default-export-esModule-duplicate named-and-default-export-esModule-reexport named-and-default-export-runtime-esModule	{ [__esModule], named, default }	{ [__esModule], named, default }	undefined + errors	undefined	undefined + errors	true	[Module: null prototype] { [__esModule], default: { [__esModule], named, default }, [Module] }	[Module: null prototype] { [__esModule], default: { [__esModule], named, default }, [Module] }	'default'	'default'	'named'	'named'	'named'	true	true	{ [__esModule], named, default }	true	false
named-and-default-export-esModule-esm-reexport	undefined	undefined	'named'	'named'	true	true	{ [__esModule], named: [G], [Module] }	{ [__esModule], named: [G], [Module] }	undefined	undefined	'named'	'named'	'named'	true	true	{ [__esModule], named: [G], [Module] }	true	true
named-and-default-export-esm	'default'	'default'	'named'	'named'	undefined + errors	true	{ [__esModule], named: [G], default: [G], [Module] }	{ [__esModule], named: [G], default, [Module] }	'default'	'default'	'named'	'named'	'named'	true	true	{ [__esModule], named: [G], default, [Module] }	true	true
named-and-default-export-esm-esm-reexport named-export-esm	undefined + errors	undefined	'named'	'named'	undefined + errors	true	{ [__esModule], named: [G], [Module] }	{ [__esModule], named: [G], [Module] }	undefined	undefined	'named'	'named'	'named'	true	true	{ [__esModule], named: [G], [Module] }	true	true
named-and-default-export-esm-reexport	undefined	undefined	'named'	'named'	undefined	true	{ [__esModule], named: [G], [Module] }	{ [__esModule], named: [G], [Module] }	undefined	undefined	'named'	'named'	'named'	true	true	{ [__esModule], named: [G], [Module] }	true	true
named-and-default-export-getter	{ [named]: [G], [default]: [G] }	{ [named]: [G], [default]: [G] }	undefined + errors	undefined	undefined + errors	true	[Module: null prototype] { [__esModule], default: { [named]: [G], [default]: [G] }, [Module] }	[Module: null prototype] { [__esModule], default: { [named]: [G], [default]: [G] }, [Module] }	'default'	'default'	'named'	'named'	'named'	undefined	undefined	{ [named]: [G], [default]: [G] }	false	false
named-and-default-export-getter-esModule	{ [__esModule]: [G: true], [named]: [G], [default]: [G] }	{ [__esModule]: [G: true], [named]: [G], [default]: [G] }	undefined + errors	undefined	undefined + errors	true	[Module: null prototype] { [__esModule], default: { [__esModule]: [G: true], [named]: [G], [default]: [G] }, [Module] }	[Module: null prototype] { [__esModule], default: { [__esModule]: [G: true], [named]: [G], [default]: [G] }, [Module] }	'default'	'default'	'named'	'named'	'named'	true	true	{ [__esModule]: [G: true], [named]: [G], [default]: [G] }	true	false
named-and-default-export-live	{ named, default }	{ named, default }	undefined + errors	undefined	undefined + errors	true	[Module: null prototype] { [__esModule], default: { named, default }, [Module] }	[Module: null prototype] { [__esModule], default: { named, default }, [Module] }	'default'	'default'	'named-outdated'	'named'	'named'	undefined	undefined	{ named, default }	false	false
named-and-default-export-non-enumerable named-and-default-export-non-enumerable-inherited	{ [named], [default] }	{ [named], [default] }	undefined + errors	undefined	undefined + errors	true	[Module: null prototype] { [__esModule], default: { [named], [default] }, [Module] }	[Module: null prototype] { [__esModule], default: { [named], [default] }, [Module] }	'default'	'default'	'named'	'named'	'named'	undefined	undefined	{ [named], [default] }	false	false
named-and-null-default-export named-and-null-default-export-runtime single-object-with-null-default-export	{ named, default: null }	{ named, default: null }	undefined + errors	undefined	undefined + errors	true	[Module: null prototype] { [__esModule], default: { named, default: null }, [Module] }	[Module: null prototype] { [__esModule], default: { named, default: null }, [Module] }	null	null	'named'	'named'	'named'	undefined	undefined	{ named, default: null }	false	false
named-and-null-default-export-esModule named-and-null-default-export-runtime-esModule	{ [__esModule], named, default: null }	{ [__esModule], named, default: null }	undefined + errors	undefined	undefined + errors	true	[Module: null prototype] { [__esModule], default: { [__esModule], named, default: null }, [Module] }	[Module: null prototype] { [__esModule], default: { [__esModule], named, default: null }, [Module] }	null	null	'named'	'named'	'named'	true	true	{ [__esModule], named, default: null }	true	false
named-and-null-default-export-non-enumerable	{ [named], [default]: null }	{ [named], [default]: null }	undefined + errors	undefined	undefined + errors	true	[Module: null prototype] { [__esModule], default: { [named], [default]: null }, [Module] }	[Module: null prototype] { [__esModule], default: { [named], [default]: null }, [Module] }	null	null	'named'	'named'	'named'	undefined	undefined	{ [named], [default]: null }	false	false
named-export named-export-runtime single-object-export	{ named }	{ named }	undefined + errors	undefined	undefined + errors	true	[Module: null prototype] { [__esModule], default: { named }, [Module] }	[Module: null prototype] { [__esModule], default: { named }, [Module] }	undefined	undefined	'named'	'named'	'named'	undefined	undefined	{ named }	false	false
named-export-esModule named-export-runtime-esModule	{ [__esModule], named }	{ [__esModule], named }	undefined + errors	undefined	undefined + errors	true	[Module: null prototype] { [__esModule], default: { [__esModule], named }, [Module] }	[Module: null prototype] { [__esModule], default: { [__esModule], named }, [Module] }	undefined	undefined	'named'	'named'	'named'	true	true	{ [__esModule], named }	true	false
named-export-non-enumerable	{ [named] }	{ [named] }	undefined + errors	undefined	undefined + errors	true	[Module: null prototype] { [__esModule], default: { [named] }, [Module] }	[Module: null prototype] { [__esModule], default: { [named] }, [Module] }	undefined	undefined	'named'	'named'	'named'	undefined	undefined	{ [named] }	false	false
order	{ b, a, c }	{ b, a, c }	undefined + errors	undefined	undefined + errors	true	[Module: null prototype] { [__esModule], default: { b, a, c }, [Module] }	[Module: null prototype] { [__esModule], default: { b, a, c }, [Module] }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	{ b, a, c }	false	false
order-esModule	{ [__esModule], b, a, c }	{ [__esModule], b, a, c }	undefined + errors	undefined	undefined + errors	true	[Module: null prototype] { [__esModule], default: { [__esModule], b, a, c }, [Module] }	[Module: null prototype] { [__esModule], default: { [__esModule], b, a, c }, [Module] }	undefined	undefined	undefined	undefined	undefined	true	true	{ [__esModule], b, a, c }	true	false
order-esm	undefined + errors	undefined	undefined + errors	undefined	undefined + errors	true	{ [__esModule], b: [G: 'b'], a: [G: 'a'], c: [G: 'c'], [Module] }	{ [__esModule], b: [G: 'b'], a: [G: 'a'], c: [G: 'c'], [Module] }	undefined	undefined	undefined	undefined	undefined	true	true	{ [__esModule], b: [G: 'b'], a: [G: 'a'], c: [G: 'c'], [Module] }	true	true
require-circular require-circular-self require-conditional-execution	{ default, named }	{ default, named }	undefined + errors	undefined	undefined + errors	true	[Module: null prototype] { [__esModule], default: { default, named }, [Module] }	[Module: null prototype] { [__esModule], default: { default, named }, [Module] }	'default'	'default'	'named'	'named'	'named'	undefined	undefined	{ default, named }	false	false
single-empty-string-export	''	''	undefined + errors	undefined	undefined + errors	true	[Module: null prototype] { [__esModule], default: '', [Module] }	[Module: null prototype] { [__esModule], default: '', [Module] }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	''	false	false
single-null-export	null	null	undefined + errors	undefined	undefined + errors	true	[Module: null prototype] { [__esModule], default: null, [Module] }	[Module: null prototype] { [__esModule], default: null, [Module] }	type error	undefined	type error	type error	undefined	type error	undefined	null	false	false
single-promise-object-export	Promise { { named } }	Promise { { named } }	undefined + errors	undefined	undefined + errors	true	[Module: null prototype] { [__esModule], default: Promise { { named } }, [Module] }	[Module: null prototype] { [__esModule], default: Promise { { named } }, [Module] }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	Promise { { named } }	false	false
single-promise-object-with-default-export	Promise { { named, default } }	Promise { { named, default } }	undefined + errors	undefined	undefined + errors	true	[Module: null prototype] { [__esModule], default: Promise { { named, default } }, [Module] }	[Module: null prototype] { [__esModule], default: Promise { { named, default } }, [Module] }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	Promise { { named, default } }	false	false
single-promise-string-export	Promise { 'single' }	Promise { 'single' }	undefined + errors	undefined	undefined + errors	true	[Module: null prototype] { [__esModule], default: Promise { 'single' }, [Module] }	[Module: null prototype] { [__esModule], default: Promise { 'single' }, [Module] }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	Promise { 'single' }	false	false
single-string-export single-string-export-defined single-string-export-duplicate single-string-export-getter single-string-export-reexport	'single'	'single'	undefined + errors	undefined	undefined + errors	true	[Module: null prototype] { [__esModule], default: 'single', [Module] }	[Module: null prototype] { [__esModule], default: 'single', [Module] }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	'single'	false	false
single-string-export-esm-reexport	undefined	undefined	undefined	undefined	undefined	true	{ '0': [G: 's'], '1': [G: 'i'], '2': [G: 'n'], '3': [G: 'g'], '4': [G: 'l'], '5': [G: 'e'], [__esModule], [Module] }	{ '0': [G: 's'], '1': [G: 'i'], '2': [G: 'n'], '3': [G: 'g'], '4': [G: 'l'], '5': [G: 'e'], [__esModule], [Module] }	undefined	undefined	undefined	undefined	undefined	true	true	{ '0': [G: 's'], '1': [G: 'i'], '2': [G: 'n'], '3': [G: 'g'], '4': [G: 'l'], '5': [G: 'e'], [__esModule], [Module] }	true	true
single-string-export-live	'single-outdated'	'single-outdated'	undefined + errors	undefined	undefined + errors	true	[Module: null prototype] { [__esModule], default: 'single-outdated', [Module] }	[Module: null prototype] { [__esModule], default: 'single-outdated', [Module] }	undefined	undefined	undefined	undefined	undefined	undefined	undefined	'single-outdated'	false	false
tla-esModule tla-esModule-esm-reexport tla-esm tla-esm-esm-reexport	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error	compilation error

Results by test case

• 💎 hard outlier
• 🟡 outlier
• ✅ very common value

default-export

default-export	babel babel-js	esbuild	node node-lts	rollup	webpack	webpack-js	webpack4	webpack4-mjs
import x import { default as x } import * as x; x.default x = require()	{ default } ✅	{ default } ✅	{ default } ✅	{ default } ✅	{ default } ✅	{ default } ✅	{ default } ✅	{ default } ✅
import * as x; ident(x).default	{ default } ✅	{ default } ✅	{ default } ✅	{ default } ✅	{ default } ✅	{ default } ✅	'default' 💎	{ default } ✅
import { named as x }	undefined	undefined	syntax error 💎	undefined	undefined + errors 💎	undefined + warnings 💎	undefined	undefined + errors 💎
import * as x; x.named	undefined ✅	undefined ✅	undefined ✅	undefined ✅	undefined + errors 💎	undefined + warnings 💎	undefined ✅	undefined + errors 💎
import * as x; ident(x).named { named } = require() x = require(); x.named x = require(); ident(x).named { __esModule } = require() x = require(); x.__esModule x = require(); ident(x).__esModule	undefined ✅	undefined ✅	undefined ✅	undefined ✅	undefined ✅	undefined ✅	undefined ✅	undefined ✅
import { __esModule as x }	undefined	undefined	syntax error 💎	undefined	true + errors 💎	true + warnings 💎	undefined	undefined + errors 💎
import * as x; x.__esModule	undefined ✅	undefined ✅	undefined ✅	undefined ✅	true + errors 💎	true + warnings 💎	undefined ✅	undefined + errors 💎
import * as x; ident(x).__esModule	undefined ✅	undefined ✅	undefined ✅	undefined ✅	true 💎	true 💎	undefined ✅	true 💎
import * as x	{ default: { default } }	{ default: { default } }	[Module: null prototype] { default: { default }, [Module] }	[Object: null prototype] { default: { default } } 🟡	[Module: null prototype] { [__esModule], default: [G] { default }, [Module] }	[Module: null prototype] { [__esModule], default: [G] { default }, [Module] }	{ default } 🟡	[Module: null prototype] { [__esModule], default: { default }, [Module] } 🟡
import()	{ default: { default } }	{ default: { default } }	[Module: null prototype] { default: { default }, [Module] }	[Object: null prototype] { default: { default } } 🟡	[Module: null prototype] { [__esModule], default: [G] { default }, [Module] }	[Module: null prototype] { [__esModule], default: [G] { default }, [Module] }	[Module: null prototype] { [__esModule], default: { default }, [Module] }	[Module: null prototype] { [__esModule], default: { default }, [Module] }
x = require(); x.default x = require(); ident(x).default	'default' ✅	'default' ✅	'default' ✅	'default' ✅	'default' ✅	'default' ✅	'default' ✅	'default' ✅
await import() === require()	false ✅	false ✅	false ✅	false ✅	false ✅	false ✅	false ✅	false ✅
import * as x; x === await import()	true	false	true	true	false	false	false	false

default-export-esModule

default-export-esModule	babel babel-js webpack4	esbuild	node node-lts	rollup	webpack	webpack-js	webpack4-mjs
import x import { default as x } import * as x; x.default import * as x; ident(x).default	'default'	{ [__esModule], default }	{ [__esModule], default }	'default'	{ [__esModule], default }	'default'	{ [__esModule], default }
import { named as x }	undefined	undefined	syntax error 💎	undefined	undefined + errors 💎	undefined + warnings 💎	undefined + errors 💎
import * as x; x.named	undefined ✅	undefined ✅	undefined ✅	undefined ✅	undefined + errors 💎	undefined + warnings 💎	undefined + errors 💎
import * as x; ident(x).named { named } = require() x = require(); x.named x = require(); ident(x).named	undefined ✅	undefined ✅	undefined ✅	undefined ✅	undefined ✅	undefined ✅	undefined ✅
import { __esModule as x } import * as x; x.__esModule	true ✅	true ✅	true ✅	true ✅	true ✅	true ✅	undefined + errors 💎
import * as x; ident(x).__esModule	true ✅	true ✅	true ✅	undefined 💎	true ✅	true ✅	true ✅
import * as x import()	{ [__esModule], default }	{ default: { [__esModule], default }, [__esModule]: [G: true] } 💎	[Module: null prototype] { __esModule, default: { [__esModule], default }, [Module] } 🟡	[Object: null prototype] { default } 💎	[Module: null prototype] { [__esModule], default: [G] { [__esModule], default }, [Module] } 💎	{ [__esModule], default }	[Module: null prototype] { [__esModule], default: { [__esModule], default }, [Module] } 💎
x = require(); x.default x = require(); ident(x).default	'default' ✅	'default' ✅	'default' ✅	'default' ✅	'default' ✅	'default' ✅	'default' ✅
{ __esModule } = require() x = require(); x.__esModule x = require(); ident(x).__esModule	true ✅	true ✅	true ✅	true ✅	true ✅	true ✅	true ✅
x = require()	{ [__esModule], default } ✅	{ [__esModule], default } ✅	{ [__esModule], default } ✅	{ [__esModule], default } ✅	{ [__esModule], default } ✅	{ [__esModule], default } ✅	{ [__esModule], default } ✅
await import() === require()	true ✅	false 🟡	false 🟡	false 🟡	true ✅	true ✅	true ✅
import * as x; x === await import()	true ✅	false 💎	true ✅	true ✅	false 💎	true ✅	false 💎

default-export-esModule-esm-reexport

default-export-esModule-esm-reexport	babel babel-js	esbuild	node node-lts	rollup	webpack	webpack-js	webpack4 webpack4-mjs
import x import { default as x }	undefined	undefined	syntax error 💎	compilation error 💎	undefined + errors 💎	undefined + warnings 💎	undefined
import * as x; x.default	undefined ✅	undefined ✅	undefined ✅	undefined + warnings 💎	undefined + errors 💎	undefined + warnings 💎	undefined ✅
import * as x; ident(x).default import * as x; ident(x).named	undefined ✅	undefined ✅	undefined ✅	undefined ✅	undefined ✅	undefined ✅	undefined ✅
import { named as x }	undefined ✅	undefined ✅	syntax error 💎	undefined ✅	undefined + errors 💎	undefined + warnings 💎	undefined ✅
import * as x; x.named	undefined ✅	undefined ✅	undefined ✅	undefined ✅	undefined + errors 💎	undefined + warnings 💎	undefined ✅
import { __esModule as x } import * as x; x.__esModule import * as x; x === await import()	true ✅	true ✅	true ✅	true ✅	true ✅	true ✅	true ✅
import * as x; ident(x).__esModule	true ✅	true ✅	true ✅	undefined 💎	true ✅	true ✅	true ✅
import * as x	{ [__esModule] } 🟡	{ [__esModule]: [G: true] } 💎	[Module: null prototype] { __esModule, [Module] } 🟡	[Object: null prototype] {} 💎	{ [__esModule], [Module] }	{ [__esModule], [Module] }	{ [__esModule], [Module] }
import()	{ [__esModule] } 🟡	{ [__esModule]: [G: true] } 💎	[Module: null prototype] { __esModule, [Module] } 🟡	{} 💎	{ [__esModule], [Module] }	{ [__esModule], [Module] }	{ [__esModule], [Module] }
x = require(); x.default x = require(); ident(x).default { named } = require() x = require(); x.named x = require(); ident(x).named	undefined ✅	undefined ✅	require(esm) not allowed 💎	undefined ✅	undefined ✅	undefined ✅	undefined ✅
{ __esModule } = require() x = require(); x.__esModule x = require(); ident(x).__esModule	true ✅	true ✅	require(esm) not allowed 💎	true ✅	true ✅	true ✅	true ✅
x = require()	{ [__esModule] }	{ [__esModule] }	require(esm) not allowed 🟡	{ [__esModule] }	{ [__esModule], [Module] }	{ [__esModule], [Module] }	{ [__esModule], [Module] }
await import() === require()	true ✅	false 💎	require(esm) not allowed 💎	false 💎	true ✅	true ✅	true ✅

default-export-esm

default-export-esm	babel babel-js	esbuild	node node-lts	rollup	webpack	webpack-js	webpack4	webpack4-mjs
import x import { default as x } import * as x; x.default import * as x; ident(x).default	'default' ✅	'default' ✅	'default' ✅	'default' ✅	'default' ✅	'default' ✅	'default' ✅	'default' ✅
import { named as x }	undefined	compilation error	syntax error	compilation error	undefined + errors	undefined + warnings	undefined + warnings	undefined + errors
import * as x; x.named	undefined	undefined	undefined	undefined + warnings 🟡	undefined + errors 💎	undefined + warnings 🟡	undefined + warnings 🟡	undefined + errors 💎
import * as x; ident(x).named	undefined ✅	undefined ✅	undefined ✅	undefined ✅	undefined ✅	undefined ✅	undefined ✅	undefined ✅
import { __esModule as x }	true	compilation error	syntax error	compilation error	true + errors	true + warnings	undefined + warnings	undefined + errors
import * as x; x.__esModule	true	undefined	undefined	undefined + warnings	true + errors 🟡	true + warnings 🟡	undefined + warnings	undefined + errors 🟡
import * as x; ident(x).__esModule	true ✅	undefined 🟡	undefined 🟡	undefined 🟡	true ✅	true ✅	true ✅	true ✅
import * as x	{ [__esModule], default } 🟡	{ default: [G] } 💎	[Module: null prototype] { default, [Module] } 🟡	[Object: null prototype] { default } 💎	{ [__esModule], default: [G], [Module] }	{ [__esModule], default: [G], [Module] }	{ [__esModule], default: [G], [Module] }	{ [__esModule], default: [G], [Module] }
import()	{ [__esModule], default }	{ default: [G] }	[Module: null prototype] { default, [Module] }	{ default }	{ [__esModule], default: [G], [Module] }	{ [__esModule], default: [G], [Module] }	{ [__esModule], default, [Module] }	{ [__esModule], default, [Module] }
x = require(); x.default x = require(); ident(x).default	'default' ✅	'default' ✅	require(esm) not allowed 💎	'default' ✅	'default' ✅	'default' ✅	'default' ✅	'default' ✅
{ named } = require() x = require(); x.named x = require(); ident(x).named	undefined ✅	undefined ✅	require(esm) not allowed 💎	undefined ✅	undefined ✅	undefined ✅	undefined ✅	undefined ✅
{ __esModule } = require() x = require(); x.__esModule x = require(); ident(x).__esModule	true ✅	true ✅	require(esm) not allowed 💎	true ✅