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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=587240" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:135.0) Gecko/20100101 Firefox/135.0
Browser:
Firefox 135
Operating system:
Ubuntu
Device Platform:
Desktop
Date tested:
one year ago
Array.prototype.concat
750K/s
spread operator
15K/s
Push
4K/s
View exact numbers
Test name
Executions per second
✓
Array.prototype.concat
749,581 Ops/sec
spread operator
15,126 Ops/sec
Push
4,078 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);