es-toolkit
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A state-of-the-art, high-performance JavaScript utility library with a small bundle size and strong type annotations.
17 lines • 607 B
text/typescript
//#region src/compat/array/initial.d.ts
/**
* Returns a new array containing all elements except the last one from the input array.
* If the input array is empty or has only one element, the function returns an empty array.
*
* @template T The type of elements in the array.
* @param arr - The input array.
* @returns A new array containing all but the last element of the input array.
*
* @example
* const arr = [1, 2, 3, 4];
* const result = initial(arr);
* // result will be [1, 2, 3]
*/
declare function initial<T>(arr: ArrayLike<T> | null | undefined): T[];
//#endregion
export { initial };