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Run results for:
iterating through arrays (for .. of vs forEach) [noop in for of]
compare for ..of iteration speed with forEach method
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<iframe src="https://measurethat.net/Embed?id=612800" 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/138.0.0.0 Safari/537.36
Browser:
Chrome 138
Operating system:
Windows
Device Platform:
Desktop
Date tested:
10 months ago
Test name
Executions per second
for .. of
318761.6 Ops/sec
forEach
88068.2 Ops/sec
Script Preparation code:
globalThis.testArray = Array(1000).fill(0).map((_, i) => i); globalThis.noop = () => {};
Tests:
for .. of
for (const v of testArray) { noop() }
forEach
testArray.forEach(noop);