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Run results for:
pop() vs shift() vs unshift vs pop #2
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<iframe src="https://measurethat.net/Embed?id=625105" 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/144.0.0.0 Safari/537.36
Browser:
Chrome 144
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
5 months ago
shift
155.9M/s
pop
153.5M/s
push
342/s
unshift
3/s
View exact numbers
Test name
Executions per second
✓
shift
155,947,184 Ops/sec
pop
153,451,792 Ops/sec
push
342 Ops/sec
unshift
3 Ops/sec
Script Preparation code:
var array = []; for(var i = 0; i < 100000; i++){array.push(Math.random());}
Tests:
pop
while (array.length > 0) { array.pop(); }
shift
while (array.length > 0) { array.shift(); }
unshift
let a = []; for(var i = 0; i < 100000; ++i) { a.unshift(i); }
push
let a = new Array(100000); for(var i = 0; i < 100000; ++i) { a.push(i); }