Array.prototype.reverse()
Baseline
Widely available
This feature is well established and works across many devices and browser versions. Itâs been available across browsers since 2015å¹´7æ.
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const array1 = ["one", "two", "three"];
console.log("array1:", array1);
// Expected output: "array1:" Array ["one", "two", "three"]
const reversed = array1.reverse();
console.log("reversed:", reversed);
// Expected output: "reversed:" Array ["three", "two", "one"]
// Careful: reverse is destructive -- it changes the original array.
console.log("array1:", array1);
// Expected output: "array1:" Array ["three", "two", "one"]
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js
var a = ["one", "two", "three"];
var reversed = a.reverse();
console.log(a); // ['three', 'two', 'one']
console.log(reversed); // ['three', 'two', 'one']
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| Specification |
|---|
| ECMAScript® 2027 Language Specification # sec-array.prototype.reverse |