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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]
Syntax
Array.of(element0[, element1[, ...[, elementN]]])
Parameters
elementN
- Elements of which to create the array.
Return value
A new Array
instance.
Description
This function is part of the ECMAScript 6 standard. For more information see Array.of
and Array.from
proposal and Array.of
polyfill.
Examples
Array.of(1); // [1] Array.of(1, 2, 3); // [1, 2, 3] Array.of(undefined); // [undefined]
Polyfill
Running the following code before any other code will create Array.of()
if it's not natively available.
if (!Array.of) { Array.of = function() { return Array.prototype.slice.call(arguments); }; }
Specifications
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. |
Draft |
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
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fscholz,
eduardoboucas,
SphinxKnight,
varkor,
yan,
joelpalmer,
ConorOB,
Mingun,
phistuck,
franza,
rwaldron
Last updated by:
fscholz,