Array.from

Creates an array from an array-like or iterable object.

Syntax

from(arrayLike, mapfn?, thisArg?)

Parameters

• arrayLike

  An array-like or iterable object to convert to an array.

• mapfn optional function(value, index)

  A mapping function to call on every element of the array.

• thisArg optional

  Value of this used to invoke the mapfn.

Examples

Array.from(new Uint8Array([1, 2, 3]))

[ 1, 2, 3 ]

Array.from(new Set([1, 2, 3]), x => 2**x)

[ 2, 4, 8 ]