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Run results for:
Javascript push vs Unshift vs Concat
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=559428" 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/127.0.0.0 Safari/537.36 OPR/113.0.0.0
Browser:
Opera 113
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
Push
7634982.5 Ops/sec
Unshift
21148.7 Ops/sec
Concat
1644.0 Ops/sec
Script Preparation code:
var arr1; var arr2;
Tests:
Push
arr1 = [1, 2, 3]; arr2 = [4, 5, 6]; arr1.push(...arr2);
Unshift
arr1 = [1, 2, 3]; arr2 = [4, 5, 6]; arr2.unshift(...arr1);
Concat
arr1 = [1, 2, 3]; arr2 = [4, 5, 6]; arr1 = arr1.concat(arr2);