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Run results for:
for vs .foreach vs .some vs for..of
Compare loop performance
Go to the benchmark
Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=621607" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (iPhone; CPU iPhone OS 18_7 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.1 Mobile/15E148 Safari/604.1
Browser:
Mobile Safari 26
Operating system:
iOS 18.7
Device Platform:
Mobile
Date tested:
10 months ago
Benchmark engine:
Benchmark.js
for
32.1M/s
foreach
751K/s
some
717K/s
for..of
542K/s
View exact numbers
Test name
Executions per second
✓
for
32,094,388 Ops/sec
foreach
751,018 Ops/sec
some
717,045 Ops/sec
for..of
541,528 Ops/sec
Script Preparation code:
let array = new Array(100);
Tests:
for
for (let i = 0; i < array.length; i++) { array[i]; }
foreach
array.forEach((i) => { array[i]; });
some
array.some((i) => { array[i]; });
for..of
for (let i of array) { array[i]; }