Array.prototype.reverse()
Reverses an array in place and returns the same array.
Syntax
arr.reverse()Returns
Array — The reversed array (the same reference).
Examples
const a = [1, 2, 3];
console.log(a.reverse(), a);
Output
[ 3, 2, 1 ] [ 3, 2, 1 ]
console.log(['a', 'b'].reverse());
Output
[ 'b', 'a' ]
Notes
Mutates the array in place. Use `toReversed` (ES2023) or `[...a].reverse()`
for a non-mutating copy.
Browser & runtime support
| Environment | Since version |
|---|---|
| chrome | 1.0 |
| firefox | 1.0 |
| safari | 1.0 |
| edge | 12 |
| node | 0.10 |