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Run results for:
JS unshift vs slice
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Embed Benchmark Result
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
Browser:
Chrome 123
Operating system:
Windows
Device Platform:
Desktop
Date tested:
2 years ago
Test name
Executions per second
Unshift
3920219.0 Ops/sec
Slice
236317.0 Ops/sec
Script Preparation code:
var arr1 = []; for(i=0; i<10000; i++){arr1.push(i);} var arr2 = []; for(i=0; i<10000; i++){arr2.push(i);}
Tests:
Unshift
arr1.shift(); var newArr1 = arr1;
Slice
var newArr2 = arr2.slice(1,10000);