The Array.of() method creates a new Array instance with a variable number of arguments, regardless of number or type of the arguments.

The difference between Array.of() and the Array constructor is in the handling of integer arguments: Array.of(7) creates an array with a single element, 7, whereas Array(7) creates an array with 7 elements, each of which is undefined.

Array.of(7);       // [7] 
Array.of(1, 2, 3); // [1, 2, 3]

Array(7);          // [ , , , , , , ]
Array(1, 2, 3);    // [1, 2, 3]


Array.of(element0[, element1[, ...[, elementN]]])


Elements of which to create the array.

Return value

A new Array instance.


This function is part of the ECMAScript 6 standard. For more information see Array.of and Array.from proposal and Array.of polyfill.


Array.of(1);         // [1]
Array.of(1, 2, 3);   // [1, 2, 3]
Array.of(undefined); // [undefined]


Running the following code before any other code will create Array.of() if it's not natively available.

if (!Array.of) {
  Array.of = function() {


Specification Status Comment
ECMAScript 2015 (6th Edition, ECMA-262)
The definition of 'Array.of' in that specification.
Standard Initial definition.
ECMAScript 2017 Draft (ECMA-262)
The definition of 'Array.of' in that specification.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support 45 25 (25) No support No support No support
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support No support 39 25.0 (25) No support No support No support

See also

Document Tags and Contributors

 Last updated by: fscholz,