Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:77.0) Gecko/20100101 Firefox/77.0
Firefox 77
Mac OS X 10.15
Desktop
4 years ago
Test name Executions per second
Array.prototype.concat 16948450.0 Ops/sec
spread operator 12538592.0 Ops/sec
lodash concat 4103213.8 Ops/sec
HTML Preparation code:
AخA
 
1
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.10/lodash.min.js"></script>
Script Preparation code:
 
var a = [1, 2, 3]
var b = [4, 5, 6]
Tests:
  • Array.prototype.concat

     
    var c = a.concat(b);
  • spread operator

     
    var c = [...a, ...b]
  • lodash concat

     
    var c = _.concat(a, b);