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Run results for:
pop() vs shift() vs unshift vs pop vs index
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=520233" 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/124.0.0.0 Safari/537.36
Browser:
Chrome 124
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
2 years ago
pop
19.4M/s
shift
19.2M/s
index
4K/s
push
1K/s
unshift
3/s
View exact numbers
Test name
Executions per second
✓
pop
19,381,704 Ops/sec
shift
19,247,880 Ops/sec
index
4,015 Ops/sec
push
1,259 Ops/sec
unshift
3 Ops/sec
Script Preparation code:
var array = new Array(100000); for(let i = 0; i < 100000; ++i) { array[i] = i; }
Tests:
pop
while (array.length > 0) { array.pop(); }
shift
while (array.length > 0) { array.shift(); }
unshift
let a = []; for(let i = 0; i < 100000; ++i) { a.unshift(i); }
push
let a = []; for(let i = 0; i < 100000; ++i) { a.push(i); }
index
let a = new Array(100000); for(let i = 0; i < 100000; ++i) { a[i] = i; }