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Run results for:
javascript loops
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=629527" 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/18.7.2 Mobile/15E148 Safari/604.1
Browser:
Mobile Safari 18
Operating system:
iOS 18.7
Device Platform:
Mobile
Date tested:
one month ago
optimized-for
267K/s
for
257K/s
foreach
224K/s
for-of
221K/s
for-in
28K/s
View exact numbers
Test name
Executions per second
✓
optimized-for
267,374 Ops/sec
for
257,314 Ops/sec
foreach
224,469 Ops/sec
for-of
220,953 Ops/sec
for-in
28,273 Ops/sec
Tests:
foreach
const items = Array.from({length: 1000}, () => Math.floor(Math.random() * 40)); let index = 0; items.forEach(i => index++);
for-in
const items = Array.from({length: 1000}, () => Math.floor(Math.random() * 40)); let index = 0; for (let i in items) { index++; }
for-of
const items = Array.from({length: 1000}, () => Math.floor(Math.random() * 40)); let index = 0; for (let i of items) { index++; }
for
const items = Array.from({length: 1000}, () => Math.floor(Math.random() * 40)); let index = 0; for(let i = 0; i < items.length; ++i) { index++; }
optimized-for
const items = Array.from({length: 1000}, () => Math.floor(Math.random() * 40)); let index = 0; for(let i = items.length; i > 0; --i) { index++; }