`array.flatten()`

Flatten an Array by one level.

Signature

flatten() => Array<Any>

Flattens an Array by one level, reducing its dimensions by one.

The calling Array must be a multi-dimentional Array. If there are non-Array elements in the Array, an error is returned.

None

Type	Description
Array<Any>	Flattened Array.

Type

Description

Flattened Array.

[[1, 2], [3, 4]].flatten()

[
  1,
  2,
  3,
  4
]