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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=562298" 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/129.0.0.0 Safari/537.36
Browser:
Chrome 129
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Array.prototype.concat
120K/s
Push
28K/s
spread operator
19K/s
View exact numbers
Test name
Executions per second
✓
Array.prototype.concat
119,863 Ops/sec
Push
27,817 Ops/sec
spread operator
19,490 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);