array-flat.yml

name: Array flat() and flatMap()
description: The `flat()` and `flatMap()` methods for arrays and typed arrays creates a new array such that each nested array item is concatenated into it.
caniuse: array-flat
spec:
  - https://tc39.es/ecma262/multipage/indexed-collections.html#sec-array.prototype.flat
  - https://tc39.es/ecma262/multipage/indexed-collections.html#sec-array.prototype.flatmap
snapshot: ecmascript-2019
group: arrays
test262:
  - Array.prototype.flat
  - Array.prototype.flatMap