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Run results for:
for loop speed comparison
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=628134" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.4 Safari/605.1.15
Browser:
Safari 26
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
3 months ago
for
9K/s
for of
8K/s
forEach
3K/s
View exact numbers
Test name
Executions per second
✓
for
9,086 Ops/sec
for of
7,990 Ops/sec
forEach
3,016 Ops/sec
Script Preparation code:
"use strict"; const arr = []; for (let i = 0; i < 10000; i++) { arr[i] = i; }
Tests:
for
"use strict"; let x = 0; for (let i = 0; i < 10000; i++) { x = arr[i] };
forEach
"use strict"; let x = 0; arr.forEach(function(i) { x = i });
for of
"use strict"; let x = 0; for (const i of arr) { x = i };