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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=627778" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:149.0) Gecko/20100101 Firefox/149.0
Browser:
Firefox 149
Operating system:
Mac OS X 10.15
Device Platform:
Desktop
Date tested:
3 months ago
forEach
48.4M/s
for ... of
21.0M/s
View exact numbers
Test name
Executions per second
✓
forEach
48,423,672 Ops/sec
for ... of
20,952,914 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) }