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Run results for:
for vs foreach vs some vs for..of
Compare loop performance
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=599307" 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/135.0.0.0 Safari/537.36
Browser:
Chrome 135
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
some
9.6M/s
foreach
9.4M/s
for
4.9M/s
for..of
1.2M/s
View exact numbers
Test name
Executions per second
✓
some
9,602,027 Ops/sec
foreach
9,446,510 Ops/sec
for
4,887,025 Ops/sec
for..of
1,234,328 Ops/sec
Script Preparation code:
var array = new Array(100);
Tests:
for
for (var i = 0; i < array.length; i++) { array[i]; }
foreach
array.forEach(function(i) { array[i]; });
some
array.some(function(i) { array[i]; });
for..of
for (var i of array) { array[i]; }