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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=518840" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (iPhone; CPU iPhone OS 17_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) GSA/311.0.621658582 Mobile/15E148 Safari/604.1
Browser:
Mobile Safari 17
Operating system:
iOS 17.0
Device Platform:
Mobile
Date tested:
2 years ago
spread operator
388.8M/s
Array.prototype.concat
28.3M/s
Push
10.3M/s
View exact numbers
Test name
Executions per second
✓
spread operator
388,795,808 Ops/sec
Array.prototype.concat
28,324,538 Ops/sec
Push
10,259,858 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);