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Run results for:
length assignment during loop
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<iframe src="https://measurethat.net/Embed?id=514665" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36
Browser:
Chrome 122
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
2 years ago
Test name
Executions per second
assignment
2460290.5 Ops/sec
no assignment
32269.2 Ops/sec
Script Preparation code:
var arr = []; for(let i=0; i<=1000; ++i){ arr.push(i); }
Tests:
assignment
for (let i = 0, length = arr.length; i < length; i++){ }
no assignment
for (let i = 0; i < arr.length; i++){ }