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Run results for:
Array concat vs double 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=521583" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:124.0) Gecko/20100101 Firefox/124.0
Browser:
Firefox 124
Operating system:
Mac OS X 10.15
Device Platform:
Desktop
Date tested:
2 years ago
Push
37.1M/s
Array.prototype.concat
31.9M/s
spread operator
23.4M/s
View exact numbers
Test name
Executions per second
✓
Push
37,057,240 Ops/sec
Array.prototype.concat
31,932,274 Ops/sec
spread operator
23,398,080 Ops/sec
Tests:
Array.prototype.concat
var params = [ "hello", true, 7 ]; var other = [ 1, 2 ].concat(params);
spread operator
var params = [ "hello", true, 7 ] var arr = [1, 2] var other = [ ...arr, ...params ]
Push
var params = [ "hello", true, 7 ]; var other = [ 1, 2 ].push(...params);