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Run results for:
Array.prototype.slice vs spread operator - large array 100000
Compare the new ES6 spread operator with the traditional slice() method
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<iframe src="https://measurethat.net/Embed?id=605182" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36
Browser:
Chrome 136
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Array.prototype.slice
183K/s
spread operator
155K/s
View exact numbers
Test name
Executions per second
✓
Array.prototype.slice
182,992 Ops/sec
spread operator
154,649 Ops/sec
Script Preparation code:
var arr = Array.from({length: 10000}, () => Math.random())
Tests:
Array.prototype.slice
var other = arr.slice();
spread operator
var other = [ ...arr ]