Array

`Array.prototype.toReversed`

Returns a new array with the elements in reversed order, without modifying the original array

Syntax

JavaScript

array.toReversed()

Return Value

A new reversed array

Examples

Basic Usage

const arr = [1, 2, 3, 4, 5];
const reversed = arr.toReversed();
console.log(reversed); // [5, 4, 3, 2, 1]
console.log(arr); // [1, 2, 3, 4, 5] (unchanged)

Practical Example

const letters = ['a', 'b', 'c'];
console.log(letters.toReversed()); // ['c', 'b', 'a']

Advanced Usage

const data = [{ v: 1 }, { v: 2 }, { v: 3 }];
const rev = data.toReversed();
console.log(rev[0].v); // 3

Understanding Array.prototype.toReversed

The Array.prototype.toReversed method in JavaScript returns a new array with the elements in reversed order, without modifying the original array. It belongs to the Array object and is one of the most widely used methods for working with array values in modern JavaScript and TypeScript applications.

The method signature is array.toReversed(). When called, it returns a new reversed array. Understanding when and how to use toReversed() helps you write more expressive, readable code.

Common use cases for Array.prototype.toReversed include data transformation, input validation, API response processing, and building reusable utility functions. It works well alongside related methods like array-reverse, array-tosorted, array-tospliced, enabling you to chain operations together for complex data manipulation pipelines.

Supported in Chrome 110+, Firefox 115+, Safari 16+, Edge 110+, and Node.js 20+.