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Run results for:
Array concat vs spread operator vs push (forEach) 123
Compare the new ES6 spread operator with the traditional concat() method and push
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<iframe src="https://measurethat.net/Embed?id=538510" 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/126.0.0.0 Safari/537.36
Browser:
Chrome 126
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
Array.prototype.concat
6536605.5 Ops/sec
spread operator
19648604.0 Ops/sec
Push
32052992.0 Ops/sec
HTML Preparation code:
<div id=''></div>
Script Preparation code:
var arr = ['', '', ''];
Tests:
Array.prototype.concat
var params = [ "hello", true, 7 ]; var other = [ 1, 2 ].concat(params);
spread operator
var params = [ "hello", true, 7 ] var other = [ ...[1, 2], ...params ]
Push
var params = [ "hello", true, 7 ]; var other = [ 1, 2 ]; params.forEach((item) => { other.push(item); });