JavaScript Array with()
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Definition and Usage
with() The method is used to update the specified element in the array.
with() The method returns a new array.
with() The method does not change the original array.
Instance
ES2023 has added with() Methods, as a safe way to update array elements without changing the original array:
const months = ["Januar", "Februar", "Mar", "April"]; const myMonths = months.with(2, "March");
Syntax
array.with(index, value)
Parameter
| Parameter | Description |
|---|---|
| index |
Required. The index (position) of the element to be changed. Negative indices start counting from the end of the array. |
| value | Required. The new value. |
Return Value
| Type | Description |
|---|---|
| Array | New array containing the modified elements. |
Browser Support
with() It is a feature of ES2023.
Starting from July 2023, all modern browsers support this method:
| Chrome | Edge | Firefox | Safari | Opera |
|---|---|---|---|---|
| Chrome 110 | Edge 110 | Firefox 115 | Safari 16.4 | Opera 96 |
| February 2023 | February 2023 | July 2023 | March 2023 | May 2023 |
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