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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=496975" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (iPad; CPU OS 17_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.2 Mobile/15E148 Safari/604.1
Browser:
Mobile Safari 17
Operating system:
iOS 17.2
Device Platform:
Tablet
Date tested:
2 years ago
some
7.2M/s
foreach
366K/s
for..of
108K/s
for
96K/s
View exact numbers
Test name
Executions per second
✓
some
7,248,465 Ops/sec
foreach
366,339 Ops/sec
for..of
108,183 Ops/sec
for
96,391 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]; }