Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.69 Safari/537.36
Chrome 95
Mac OS X 10.15.7
Desktop
3 years ago
Test name Executions per second
_.union 3167891.0 Ops/sec
Set() 4007660.2 Ops/sec
Set() convert back to array 3793653.5 Ops/sec
HTML Preparation code:
AخA
 
1
<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/lodash@4.17.10/lodash.min.js"></script>
Script Preparation code:
 
var a = [1, 2, 3, 4, 5]
var b = [3, 4, 5, 6, 7]
Tests:
  • _.union

     
    var c = _.union(a, b)
  • Set()

     
    var c = new Set(a, b)
  • Set() convert back to array

     
    var c = new Set(a, b)
    var d = [...c]