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Run results for:
Array concat vs spread operator vs push (Super Big Array)
Compare the new ES6 spread operator with the traditional concat() method and push
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<iframe src="https://measurethat.net/Embed?id=585915" 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/132.0.0.0 Safari/537.36 Edg/132.0.0.0
Browser:
Chrome 132
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Array.prototype.concat
394K/s
Push
65K/s
spread operator
39K/s
View exact numbers
Test name
Executions per second
✓
Array.prototype.concat
394,351 Ops/sec
Push
64,931 Ops/sec
spread operator
38,696 Ops/sec
Script Preparation code:
var params = []; for (var i = 0; i < 10000; i++) { params.push('String'+i); }
Tests:
Array.prototype.concat
var other = [ 1, 2 ].concat(params);
spread operator
var other = [ 1, 2, ...params ]
Push
var other = [ 1, 2 ].push(...params);