adjust
The adjust function applies a function to an element at a specific index in an array, returning a new array with the adjusted value.
Syntax
typescript
adjust<T>(array: T[], index: number, fn: (value: T) => T): T[];Parameters
| Name | Type | Description |
|---|---|---|
array | T[] | Array to be adjusted |
index | number | Index of the element to be adjusted |
fn | (value: T) => T | Function to apply to the element |
Returns
| Type | Description |
|---|---|
T[] | New array with the adjusted element |
Examples
typescript
adjust([1, 2, 3], 1, x => x * 10); // => [1, 20, 3]
adjust([1, 2, 3], -1, x => x + 1); // => [1, 2, 4]Notes
- The index can be negative to count from the end of the array.
- Does not modify the original array.