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Run results for:
arr unshift vs push + reverse (large array)
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<iframe src="https://measurethat.net/Embed?id=510453" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36
Browser:
Chrome 122
Operating system:
Linux
Device Platform:
Desktop
Date tested:
2 years ago
Test name
Executions per second
unshift
0.1 Ops/sec
push + reverse
57.9 Ops/sec
Script Preparation code:
var arr = [];
Tests:
unshift
for (let i = 0; i < 100000; i++){ arr.unshift(i); }
push + reverse
for (let i = 0; i < 100000; i++){ arr.push(i); } arr.reverse();