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Run results for:
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=512272" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (iPhone; CPU iPhone OS 17_4 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Mobile/15E148 Safari/604.1
Browser:
Mobile Safari 17
Operating system:
iOS 17.4
Device Platform:
Mobile
Date tested:
2 years ago
Array.prototype.concat
1.3M/s
spread operator
659K/s
Push
590K/s
View exact numbers
Test name
Executions per second
✓
Array.prototype.concat
1,281,776 Ops/sec
spread operator
659,300 Ops/sec
Push
589,651 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 other = [ 1, 2, ...params ]
Push
var params = [ "hello", true, 7 ]; var other = [ 1, 2 ].push(...params);