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Run results for:
for vs foreach vs some vs for..of (short array)
Compare loop performance
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=487570" 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/119.0.0.0 Safari/537.36
Browser:
Chrome 119
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
2 years ago
some
23.2M/s
foreach
23.1M/s
for..of
4.2M/s
for
2.7M/s
View exact numbers
Test name
Executions per second
✓
some
23,166,824 Ops/sec
foreach
23,140,192 Ops/sec
for..of
4,229,614 Ops/sec
for
2,686,338 Ops/sec
Script Preparation code:
var array = new Array(5);
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]; }