@monstermann/fn
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A utility library for TypeScript.
26 lines • 855 B
TypeScript
//#region src/array/setAt.d.ts
/**
* `setAt(target, idx, value)`
*
* Sets the value at the specified `idx` in `target` to `value`. Returns the original array if the index is out of bounds or the value is already the same.
*
* ```ts
* setAt([1, 2, 3], 1, 9); // [1, 9, 3]
* setAt([1, 2, 3], -1, 9); // [1, 2, 9]
* setAt([1, 2, 3], 5, 9); // [1, 2, 3]
* ```
*
* ```ts
* pipe([1, 2, 3], setAt(1, 9)); // [1, 9, 3]
* pipe([1, 2, 3], setAt(-1, 9)); // [1, 2, 9]
* pipe([1, 2, 3], setAt(5, 9)); // [1, 2, 3]
* ```
*/
declare const setAt: {
<T>(idx: number, value: NoInfer<T>): (target: T[]) => T[];
<T>(idx: number, value: NoInfer<T>): (target: readonly T[]) => readonly T[];
<T>(target: T[], idx: number, value: NoInfer<T>): T[];
<T>(target: readonly T[], idx: number, value: NoInfer<T>): readonly T[];
};
//#endregion
export { setAt };