tc39 / proposal-flatMap

proposal for flatten and flatMap on arrays

https://tc39.github.io/proposal-flatMap

tc39/proposal-flatMap Issues

concatAll and concatMap rather than flatten and flatMap
Closed 3 years ago14
Array.prototype.shallowFlatten
Closed 3 years ago20
Explore names other than `flat`/`smoosh`
Closed 3 years ago7
flatten shallow by default
Closed 7 years ago28
.d.ts proposal inaccurate
Closed 5 years ago1
test262 tests
Closed 5 years ago8
TypedArray flatMap?
Closed 7 years ago8
Should these names be added to @@unscopables?
Closed 6 years ago5
Why does flatten remove empty slots in arrays?
Closed 6 years ago7
Write an explainer for the naming issue
Closed 6 years ago20
Implementation status
Updated 6 years ago12
What about a fillMap ?
Closed 6 years ago2
Why does this proposal not use the iterator protocol?
Closed 6 years ago5
Proposal for Array.depth to get depth of an nested array.
Closed 6 years ago6
What about Array.prototype.flat()?
Closed 6 years ago1
Is there a constraint on the mapping function having to return an Array?
Closed 6 years ago9
Use HTML feature opt-in for language level compatibility
Closed 6 years ago12
Would something like 'use stricter' satisfy the smoosh/flatten issue?
Closed 6 years ago1
Eliminate IsArray call purely for side-effects
Closed 7 years ago1
Update gh-pages
Closed 7 years ago4
Revisit: default depth of `flatten`
Closed 7 years ago1
Review comments
Closed 7 years ago10
stage 2 assigned reviewer sign-off
Closed 7 years ago1
`mapper` is never used
Closed 7 years ago7
Do we still want the `thisArg`?
Closed 7 years ago4
FlattenIntoArray does not set length?
Closed 7 years ago
Objections to stage 3 advancement
Closed 7 years ago5
isConcatSpreadable implications for DOM collections
Closed 7 years ago41
IsArray *and* arguments exotic objects?
Closed 7 years ago2
Self-containing arrays in `.flatten(Infinity)`
Closed 7 years ago7
Readme?
Closed 7 years ago3
Bikeshed: flatten(3) vs. flatten({ depth: 3 })
Closed 7 years ago10
Checking existence of properties
Closed 7 years ago7
Inconsistency third argument of `.flatMap` callback with `.map` callback
Closed 7 years ago
throw when attempting to flatten a value which is not isConcatSpreadable
Closed 7 years ago6
Should we support flattening iterables instead of concatSpreadables?
Closed 7 years ago26
Get "length" performed after ArraySpeciesCreate
Closed 7 years ago3
targetIndex off-by-one error in FlattenIntoArray
Closed 7 years ago1
flatMap accidentally flattens 2 levels deep
Closed 7 years ago
"was provided" should change to "!== undefined"
Closed 7 years ago1
Include an .ap/Applicative method with this propsal
Closed 7 years ago10
`thisCtx` in FlattenIntoArray should default to `target`
Closed 7 years ago1
Should `depth` use `ToInteger`?
Closed 7 years ago
add to July 2017 agenda
Closed 7 years ago3
What is "len" in Array.prototype.flatten / Array.prototype.flatMap
Closed 7 years ago
flatMap should not recursively flatten result
Closed 9 years ago1
flatten should take a parameter for how many layers to flatten
Closed 9 years ago