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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=582982" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:109.0) Gecko/20100101 Firefox/115.0
Browser:
Firefox 115
Operating system:
Mac OS X 10.14
Device Platform:
Desktop
Date tested:
one year ago
Benchmark engine:
Benchmark.js
concat
2.9M/s
append
2.4M/s
unshift
2.0M/s
splice
1.9M/s
reverse
1.7M/s
View exact numbers
Test name
Executions per second
✓
concat
2,939,862 Ops/sec
append
2,366,446 Ops/sec
unshift
2,027,900 Ops/sec
splice
1,883,688 Ops/sec
reverse
1,685,496 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);