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Run results for:
for vs .foreach vs .some vs for..of
Compare loop performance
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Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=618984" 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/141.0.0.0 Safari/537.36 Edg/141.0.0.0
Browser:
Chrome 141
Operating system:
Windows
Device Platform:
Desktop
Date tested:
11 months ago
Benchmark engine:
Benchmark.js
foreach
4.7M/s
some
4.4M/s
for
2.3M/s
for..of
601K/s
View exact numbers
Test name
Executions per second
✓
foreach
4,719,222 Ops/sec
some
4,364,411 Ops/sec
for
2,262,390 Ops/sec
for..of
600,542 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]; }