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Run results for:
Array concat vs spread operator vs push - fork
Compare the new ES6 spread operator with the traditional concat() method and push
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<iframe src="https://measurethat.net/Embed?id=581768" 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/132.0.0.0 Safari/537.36
Browser:
Chrome 132
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Push
90.7M/s
spread operator
21.5M/s
Array.prototype.concat
5.2M/s
View exact numbers
Test name
Executions per second
✓
Push
90,650,160 Ops/sec
spread operator
21,531,456 Ops/sec
Array.prototype.concat
5,240,528 Ops/sec
Tests:
Array.prototype.concat
var params = [ "hello", true, 72312 ]; var other = params.reduce((acc, curr) => acc.concat(curr), []);
spread operator
var params = [ "hello", true, 7 ] var other = params.reduce((acc, curr) => [...acc, curr], []);
Push
var params = [ "hello", true, 7 ]; var other = params.reduce((acc, curr) => acc.push(curr) && acc, []);