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

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Mobile Safari/537.36

Browser: Chrome Mobile 131

Operating system: Android

Device Platform: Mobile

Date tested: 2 months ago

Test name	Executions per second
Length 10 temp swap	8906382.0 Ops/sec
Length 10 destructuring swap	11441229.0 Ops/sec
Length 100 temp swap	4437890.5 Ops/sec
Length 100 destructuring swap	4656239.5 Ops/sec
Length 1000 temp swap	754892.2 Ops/sec
Length 1000 destructuring swap	761471.8 Ops/sec
Length 10 xor swap	10858186.0 Ops/sec
Length 100 xor swap	3713985.8 Ops/sec
Length 1000 xor swap	699407.6 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