MeasureThat.net

Run results for: Array.prototype.concat vs spread operator

Compare the new ES6 spread operator with the traditional concat() method

Go to the benchmark
Run details:
Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.117 Safari/537.36
Chrome 66
Windows 8.1
Other
6 years ago
Test name Executions per second
Lodash concat 1568973.1 Ops/sec
spread operator 4793406.0 Ops/sec
jQuery merge 1811784.9 Ops/sec
HTML Preparation code:
AخA
 
1
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>
Tests:

  • Lodash concat

     
    var params = [ "hello", true, 7 ];
    var other = _.concat([1, 2], params);

  • spread operator

     
    var params = [ "hello", true, 7 ]
    var other = [ 1, 2, ...params ]

  • jQuery merge

     
    var params = [ "hello", true, 7 ];
    var other = $.merge([1, 2], params);