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Run results for:
for vs foreach vs for..in vs for..of jul 2025
Compare loop performance
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=614385" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36 Edg/138.0.0.0
Browser:
Chrome 138
Operating system:
Windows
Device Platform:
Desktop
Date tested:
9 months ago
Test name
Executions per second
for
423884.6 Ops/sec
foreach
734962.5 Ops/sec
for in
1798273.5 Ops/sec
for..of
3705146.5 Ops/sec
Script Preparation code:
var array = new Array(1000);
Tests:
for
for (var i = 0; i < array.length; i++) { var x = array[i]; }
foreach
array.forEach((el)=> { var e = el; });
for in
for (var el in array) { var e = el; }
for..of
for (var el of array) { var e = el; }