JavaScript Array with()
JavaScript Array with() Method
ES2023 added the Array with() method as a safe way to update elements in an array without altering the original array.
Example
const months = ["Januar", "Februar", "Mar", "April"];
const myMonths = months.with(2, "March");
Try it Yourself »
Description
The with() method updates a specified array element.
The with() method returns a new array.
The with() method does not change the original array.
Syntax
array.with(index, value)
Parameters
| Parameter | Description |
| index | Required. The index (position) of the item to change. A negative index counts from the end of the array. |
| value | Required. The new value. |
Return Value
| A new array containing the changed element. |
Array Tutorials:
Browser Support
with() is an ES2023 feature.
It is supported in all modern browsers since July 2023:
| Chrome 110 | Edge 110 | Firefox 115 | Safari 16.4 | Opera 96 |
| Feb 2023 | Feb 2023 | Jul 2023 | Mar 2023 | May 2023 |
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