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Run results for:
Array.prototype.slice vs spread operator on a bigger array with bigger elements
Compare the new ES6 spread operator with the traditional slice() method on a bigger array.
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<iframe src="https://measurethat.net/Embed?id=600933" 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/130.0.0.0 Safari/537.36
Browser:
Chrome 130
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
Array.prototype.slice
1315581.9 Ops/sec
spread operator
124964.0 Ops/sec
Script Preparation code:
var array = Array(10000).fill(Array(10000000).fill({ rand: Math.random(), randStr: 'str' + Math.random() }))
Tests:
Array.prototype.slice
var otherArray = array.slice();
spread operator
var otherArray = [...array];