es-toolkit/dist/compat/array/last.js

A state-of-the-art, high-performance JavaScript utility library with a small bundle size and strong type annotations.

const require_last = require("../../array/last.js");
const require_toArray = require("../_internal/toArray.js");
const require_isArrayLike = require("../predicate/isArrayLike.js");
//#region src/compat/array/last.ts
/**
* Returns the last element of an array.
*
* This function takes an array and returns the last element of the array.
* If the array is empty, the function returns `undefined`.
*
* Unlike some implementations, this function is optimized for performance
* by directly accessing the last index of the array.
*
* @template T - The type of elements in the array.
* @param arr - The array from which to get the last element.
* @returns The last element of the array, or `undefined` if the array is empty.
*
* @example
* const arr = [1, 2, 3];
* const lastElement = last(arr);
* // lastElement will be 3
*
* const emptyArr: number[] = [];
* const noElement = last(emptyArr);
* // noElement will be undefined
*/
function last(array) {
	if (!require_isArrayLike.isArrayLike(array)) return;
	return require_last.last(require_toArray.toArray(array));
}
//#endregion
exports.last = last;