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Run results for:
Array.prototype.concat vs spread operator (new try)
Compare the new ES6 spread operator with the traditional concat() method
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<iframe src="https://measurethat.net/Embed?id=615365" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/139.0.0.0 Safari/537.36
Browser:
Chrome 139
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Array.prototype.concat
44.2M/s
spread operator
8.4M/s
View exact numbers
Test name
Executions per second
✓
Array.prototype.concat
44,223,792 Ops/sec
spread operator
8,404,415 Ops/sec
Tests:
Array.prototype.concat
var array = [ 1, 2 ]; var other = [ ...array, 3 ];
spread operator
var array = [ 1, 2 ]; var other = array.concat(3);