array.flatten()

Flatten an Array by one level.

Signature

flatten() => Array<Any>

Description

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.

Parameters

None

Return value

Type Description

Array<Any>

Flattened Array.

Examples

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