es-toolkit/docs/reference/array/forEachRight.md

forEachRight

Iterates over elements of arr from right to left and invokes callback for each element.

Signature

function forEachRight<T>(arr: T[], callback: (value: T, index: number, arr: T[]) => void): void;

Parameters

• arr (T[]): The array to iterate over.
• callback ((value: T, index: number, arr: T[])): The function invoked per iteration.
  • value: The current element being processed in the array.
  • index: The index of the current element being processed in the array.
  • arr: The array forEachRight was called upon.

Returns

void

Examples

import { forEachRight } from 'es-toolkit/array';

const array = [1, 2, 3];
const result: number[] = [];

// Use the forEachRight function to iterate through the array and add each element to the result array.
forEachRight(array, value => {
  result.push(value);
});

console.log(result); // Output: [3, 2, 1];