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Run results for:
Array.prototype.concat vs spread operatorssssssssssssssssssssssssssss
Compare the new ES6 spread operator with the traditional concat() method
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<iframe src="https://measurethat.net/Embed?id=502495" 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/121.0.0.0 Safari/537.36
Browser:
Chrome 121
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
2 years ago
Benchmark engine:
Benchmark.js
spread operator
70.5M/s
Array.prototype.concat
39.1M/s
jQuery merge
16.5M/s
View exact numbers
Test name
Executions per second
✓
spread operator
70,528,800 Ops/sec
Array.prototype.concat
39,103,472 Ops/sec
jQuery merge
16,497,649 Ops/sec
Tests:
Array.prototype.concat
var params = [ { message: 'A' } ]; var paramss = [ { message: 'B' } ]; var other = [ ...params, ...paramss ];
spread operator
var params = [ { message: 'A' } ]; var paramss = [ { message: 'B' } ]; var other = params.push(...paramss);
jQuery merge
var params = [ { message: 'A' } ]; var paramss = [ { message: 'B' } ]; var other = params.concat(paramss)