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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=625279" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:147.0) Gecko/20100101 Firefox/147.0
Browser:
Firefox 147
Operating system:
Mac OS X 10.15
Device Platform:
Desktop
Date tested:
5 months ago
for
10K/s
for-of
4K/s
forEach
4K/s
View exact numbers
Test name
Executions per second
✓
for
9,507 Ops/sec
for-of
4,216 Ops/sec
forEach
3,555 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'; })