Toggle navigation
MeasureThat.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
Run results for:
unshift vs concat vs spread of another array
unshift vs concat vs spread of another array
Go to the benchmark
Embed
Embed Benchmark Result
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36
Browser:
Chrome 120
Operating system:
Windows
Device Platform:
Desktop
Date tested:
2 years ago
Test name
Executions per second
unshift an array
8403.2 Ops/sec
concat an array
366.8 Ops/sec
spread on array
32.8 Ops/sec
Script Preparation code:
var array = [2,3,4]; var x = [-1,0,1];
Tests:
unshift an array
array.unshift(...x)
concat an array
array.concat(x)
spread on array
array = [...x, ...array]