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Run results for:
Large Array concat vs spread operator vs push
Compare the new ES6 spread operator with the traditional concat() method and push
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<iframe src="https://measurethat.net/Embed?id=490005" 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/118.0.0.0 Whale/3.23.214.17 Safari/537.36
Browser:
Chrome 118
Operating system:
Windows
Device Platform:
Desktop
Date tested:
2 years ago
Array.prototype.concat
195K/s
Push
58K/s
spread operator
33K/s
View exact numbers
Test name
Executions per second
✓
Array.prototype.concat
195,274 Ops/sec
Push
58,092 Ops/sec
spread operator
32,607 Ops/sec
Tests:
Array.prototype.concat
var params = new Array(10000); var other = [ 1, 2 ].concat(params);
spread operator
var params = new Array(10000); var other = [ 1, 2, ...params ]
Push
var params = new Array(10000); var other = [ 1, 2 ].push(...params);