Toggle navigation
MeasureThat.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
Run results for:
spread vs concat vs unshift for arrays
spread vs concat vs unshift
Go to the benchmark
Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=623036" 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/143.0.0.0 Safari/537.36
Browser:
Chrome 143
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
5 months ago
Test name
Executions per second
arrayUnshift123
16791.3 Ops/sec
arrayConcat123
1910.6 Ops/sec
arraySpread123
80.3 Ops/sec
Script Preparation code:
var array = [1,2,3,4,5,6,7,8,9]; var array2 = [1,1,1];
Tests:
arrayUnshift123
array.unshift(...array2);
arrayConcat123
array = array.concat(array2)
arraySpread123
array = [...array2 , ...array]