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Run results for:
array.splice vs for loop
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=590117" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:135.0) Gecko/20100101 Firefox/135.0
Browser:
Firefox 135
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
array.splice w/o spread
59K/s
for loop
46K/s
array.splice
42K/s
View exact numbers
Test name
Executions per second
✓
array.splice w/o spread
58,611 Ops/sec
for loop
45,676 Ops/sec
array.splice
41,563 Ops/sec
Script Preparation code:
s = new Set(); a = []; for (var i=0; i < 1000; i++) s.add(i*i);
Tests:
array.splice
a.splice(0, a.length, ...s.values());
for loop
a.length = 0; for (var x of s) a.push(x);
array.splice w/o spread
a.splice.apply(a, [0, a.length].concat(Array.from(s)));