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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=568383" 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
Test name
Executions per second
Array.prototype.slice
591874.2 Ops/sec
spread operator
610403.8 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 ]