JavaScript Array.from()
Definition and Usage
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()
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.
Syntax
Array.from(object, mapFunction, thisValue)
Parameters
| 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 thisfor the mapFunction |
Return Value
| Type | Description |
| An array | The values from the iterable object. |
Browser Support
Array.from() is an ECMAScript6 (ES6) feature.
ES6 (JavaScript 2015) is supported in all modern browsers:
| Chrome | Edge | Firefox | Safari | Opera |
| Yes | Yes | Yes | Yes | Yes |
Array.from() is not supported in Internet Explorer 11 (or earlier).
