Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.54 Safari/537.36
Chrome 95
Windows
Desktop
3 years ago
Test name Executions per second
lodash union 1771737.5 Ops/sec
Set from flatten 1256062.6 Ops/sec
HTML Preparation code:
x
 
1
2
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>
Script Preparation code:
 
var list = [[ 'a', 'b', 'c' ], [ 'b', 'd', 'a', 'e', 'f' ]];
Tests:
  • lodash union

     
    var c = _.union(...list);
  • Set from flatten

     
    var c = new Set(_.flatten(list))