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Run results for:
Array.prototype.concat vs spread oper
Compare the new ES6 spread operator with the traditional concat() method
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<iframe src="https://measurethat.net/Embed?id=589877" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (iPhone; CPU iPhone OS 16_7_10 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.6 Mobile/15E148 Safari/604.1
Browser:
Mobile Safari 16
Operating system:
iOS 16.7.10
Device Platform:
Mobile
Date tested:
one year ago
Test name
Executions per second
Array.prototype.concat
2181.3 Ops/sec
spread operator
2386.7 Ops/sec
Script Preparation code:
let big = (new Array(1e5)).fill(99);
Tests:
Array.prototype.concat
var other = big.concat(2);
spread operator
var other = [ ...big, 2 ]