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Run results for:
list push vs splice
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=570477" 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/131.0.0.0 Safari/537.36
Browser:
Chrome 131
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Benchmark engine:
Benchmark.js
unshift
2.8M/s
append
2.7M/s
concat
2.3M/s
splice
2.2M/s
reverse
1.7M/s
View exact numbers
Test name
Executions per second
✓
unshift
2,797,324 Ops/sec
append
2,707,599 Ops/sec
concat
2,257,484 Ops/sec
splice
2,158,034 Ops/sec
reverse
1,691,991 Ops/sec
Script Preparation code:
l = 123;
Tests:
append
a = Array(l); a.push(3);
splice
a = Array(l); a.splice(0,0,3);
reverse
a = Array(l); a.reverse().push(3); a.reverse();
concat
a = Array(l); a = [3].concat(a);
unshift
a = Array(l); a.unshift(3);