Run results for: Array item swapping, destructuring vs temp variable vs xor

Run details:

User agent: Mozilla/5.0 (Android 14; Mobile; rv:134.0) Gecko/134.0 Firefox/134.0

Browser: Firefox Mobile 134

Operating system: Android

Device Platform: Mobile

Date tested: 2 months ago

Test name	Executions per second
Length 10 temp swap	3996484.0 Ops/sec
Length 10 destructuring swap	2946590.8 Ops/sec
Length 100 temp swap	1847200.6 Ops/sec
Length 100 destructuring swap	1357980.9 Ops/sec
Length 1000 temp swap	188002.8 Ops/sec
Length 1000 destructuring swap	195659.4 Ops/sec
Length 10 xor swap	3152567.0 Ops/sec
Length 100 xor swap	1386054.1 Ops/sec
Length 1000 xor swap	199069.9 Ops/sec

Script Preparation code:

function tempSwap(array) {
    const length = array.length;
    const swap1 = Math.floor(Math.random() * length);
    const swap2 = Math.floor(Math.random() * length);
    const temp = array[swap1];

    array[swap1] = array[swap2];
    array[swap2] = array[temp];
}

function destructuringSwap(array) {
    const length = array.length;
    const swap1 = Math.floor(Math.random() * length);
    const swap2 = Math.floor(Math.random() * length);

    return [
        array[swap1],
        array[swap2]
    ] = [
        array[swap2],
        array[swap1]
    ];
}

function xorSwap(array) {
const length = array.length;
    const swap1 = Math.floor(Math.random() * length);
    const swap2 = Math.floor(Math.random() * length);
    array[swap1] ^= array[swap2];
    array[swap2] ^= array[swap1];
    array[swap1] ^= array[swap2];
}

Tests:

Length 10 temp swap
tempSwap(new Array(10));
Length 10 destructuring swap
destructuringSwap(new Array(10));
Length 100 temp swap
tempSwap(new Array(100));
Length 100 destructuring swap
destructuringSwap(new Array(100));
Length 1000 temp swap
tempSwap(new Array(1000));
Length 1000 destructuring swap
destructuringSwap(new Array(1000));
Length 10 xor swap
xorSwap(new Array(10));
Length 100 xor swap
xorSwap(new Array(100));
Length 1000 xor swap
xorSwap(new Array(1000));

Run results for: Array item swapping, destructuring vs temp variable vs xor

Array destructuring vs temp variable use in array item swapping

Length 10 temp swap

Length 10 destructuring swap

Length 100 temp swap

Length 100 destructuring swap

Length 1000 temp swap

Length 1000 destructuring swap

Length 10 xor swap

Length 100 xor swap

Length 1000 xor swap