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Run results for:
JS forEach vs for ... of
compare between forEach and for ... of
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<iframe src="https://measurethat.net/Embed?id=623615" 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/26.2 Mobile/15E148 Safari/604.1
Browser:
Mobile Safari 26
Operating system:
iOS 18.7
Device Platform:
Mobile
Date tested:
6 months ago
forEach
57.6M/s
for ... of
20.1M/s
View exact numbers
Test name
Executions per second
✓
forEach
57,572,280 Ops/sec
for ... of
20,096,570 Ops/sec
Script Preparation code:
x = [1,2,3,4,5]
Tests:
forEach
y = [] x.forEach(i => y.push(i))
for ... of
y = [] for (const i of x) { y.push(i) }