swap
The swap function exchanges the elements at two positions in an array.
Syntax
typescript
swap<T>(array: T[], indexA: number, indexB: number): T[];Parameters
| Name | Type | Description |
|---|---|---|
array | T[] | Source array |
indexA | number | Index of the first element |
indexB | number | Index of the second element |
Returns
| Type | Description |
|---|---|
T[] | New array with swapped elements |
Examples
typescript
swap([1, 2, 3, 4], 0, 2); // => [3, 2, 1, 4]Notes
- Does not modify the original array.
- If the indices are the same, returns the array unchanged.