JavaScript Array.from()

Create an array from a string:

Array.from("ABCDEFG")

Description

The Array.from() method returns an array from any object with a length property.

The Array.from() method returns an array from any iterable object.

Array.from() is a static property of the JavaScript Array object.

You can only use it as Array.from().

Using x.from(), where x is an array will return undefined.

Array.from(object, mapFunction, thisValue)

Parameter	Description
object	Required. The object to convert to an array.
mapFunction	Optional. A map function to call on each item.
thisValue	Optional. A value to use as `this`for the mapFunction

Type	Description
An array	The values from the iterable object.

Array.from() is an ECMAScript6 (ES6) feature.

ES6 (JavaScript 2015) is supported in all modern browsers since June 2017:


Chrome 51	Edge 15	Firefox 54	Safari 10	Opera 38
May 2016	Apr 2017	Jun 2017	Sep 2016	Jun 2016

Array.from() is not supported in Internet Explorer.