Well, forget about the old and ugly way to update the value of some array.

constpeople=["Kristiyan","Emiliyan","Sally"];people[2]="Simon";Result:["Kristiyan","Emiliyan","Simon"];

Description

Thewith() method changes the value of a given index in the array, returning a new array with the element at the given index replaced with the given value. The original array is not modified. This allows you to chain array methods while doing manipulations.

Thewith() method never produces a sparse array. If the source array is sparse, the empty slots will be replaced with undefined in the new array.

Thewith() method is generic. It only expects the this value to have a length property and integer-keyed properties.

Example

constpeople=["Kristiyan","Emiliyan","Sally"];people.with(2,"Simon");Result:["Kristiyan","Emiliyan","Simon"];

Browser's compatibility

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