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

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:120.0) Gecko/20100101 Firefox/120.0

Browser: Firefox 120

Operating system: Ubuntu

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Length 10 temp swap	13153551.0 Ops/sec
Length 10 destructuring swap	11246235.0 Ops/sec
Length 100 temp swap	5999062.0 Ops/sec
Length 100 destructuring swap	5054651.0 Ops/sec
Length 1000 temp swap	357185.2 Ops/sec
Length 1000 destructuring swap	402691.2 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]
    ];
}

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));

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

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