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Run results for:
for vs for-of vs forEach
Test speed of iterating over an array
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=633178" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36
Browser:
Chrome 133
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
21 days ago
forEach
9K/s
for-of
6K/s
for
4K/s
View exact numbers
Test name
Executions per second
✓
forEach
8,697 Ops/sec
for-of
6,264 Ops/sec
for
3,587 Ops/sec
HTML Preparation code:
<!--your preparation HTML code goes here-->
Script Preparation code:
var objects = new Array(100_000).fill(0).map(()=>({}));
Tests:
for
for (var i = 0; i < objects.length; ++i) { objects[i].value = 'a'; }
for-of
for(const o of objects) { o.value = 'a' }
forEach
objects.forEach(o => { o.value = 'a'; })