Run results for: looping test

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36

Browser: Chrome 138

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 10 months ago

Test name	Executions per second
for loop	248891.8 Ops/sec
foreach loop	242.3 Ops/sec

HTML Preparation code:

<!--your preparation HTML code goes here-->

Script Preparation code:

    const styleElement = 666;
    const mutations = [{
        removedNodes: [styleElement],
    }, ];

    for (let i = 0; i < 1000; i++) {
        for (let j = 0; j < 1000; j++) {
            if (j === 0) mutations[i] = {
                removedNodes: []
            };
            mutations[i]?.removedNodes.push(j);
        }
    }

Tests:

for loop
outer: for (let i = 0; i < mutations.length; i++) { const mutation = mutations[i]; const removedNodes = mutation.removedNodes; for (let j = 0; j < removedNodes.length; j++) { const node = removedNodes[j]; if (node === styleElement) { console.log('styleElement removed'); break outer; // Breaks out of both loops } } }
foreach loop
mutations.forEach((mutation) => { mutation.removedNodes.forEach((node) => { if (node === styleElement) { console.log('styleElement removed'); } }); });

Run results for: looping test

for loop

foreach loop