Property 'render' does not exist on type 'typeof Eta'.

[Emiliano Heyns]

Describe the bug

Typescript compilation errors out with

Property 'render' does not exist on type 'typeof Eta'.

To Reproduce

run this typescript with ts-node (typescript 5.1.3):

import { Eta } from "eta";

const res = Eta.render('Hi, my name is <%= it.name %>', { name: "Ben" });
console.log(res); // Hi Ben!

Expected behavior

I expect this to run and output text to the console

Screenshots

tt.ts:3:17 - error TS2339: Property 'render' does not exist on type 'typeof Eta'.

3 const res = Eta.render('Hi, my name is <%= it.name %>', { name: "Ben" });

Package & Environment Details

• Environment: Node
• Version: 19.8.1

[Ben Gubler]

@retorquere thanks for submitting the issue! You need to initialize an instance of Eta first, then call renderString (not render) on that instance.

import { Eta } from "eta";

const eta = new Eta()

const res = eta.renderString('Hi, my name is <%= it.name %>', { name: "Ben" });
console.log(res); // Hi Ben!

[Emiliano Heyns]

I thought I saw the old syntax in the docs, but I can't find it now.

[Ben Gubler]

@retorquere you probably did -- I had some troubles with publishing the new docs, so they weren't up to date when I released the package 😅

[Daniel Evans]

This happens to me while using the latest syntax as well
Property 'renderString' does not exist on type 'Eta'.

The following test never succeeds.

import {Eta} from 'eta';
describe('[class] TemplateEngine', () => {
  test('sets up as eta', () => {

    const eta = new Eta()

    const res = eta.renderString('Hi, my name is <%= it.name %>', { name: "Ben" });
    expect(res).toStrictEqual("Hi Ben!")
  });
})

Node Version: v16.18.1

[Ben Gubler]

@daredoes you should probably change the last line's output 😉:

expect(res).toStrictEqual("Hi, my name is Ben")

Where are you getting the error that Property 'renderString' does not exist on type 'Eta'?

[Daniel Evans]

@nebrelbug it has something to do with my project's setup. I've gotten this to work by starting a project from scratch.

The error occurs when running jest against that file

[Rodrigo Campassi]

I had the same problem as @daredoes. Setting typescript version to "5.1.3" did the job