Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36
Chrome 120
Mac OS X 10.15.7
Desktop
one year ago
Test name Executions per second
includes 25634610.0 Ops/sec
has 27524386.0 Ops/sec
convert to set before includes 3827.5 Ops/sec
HTML Preparation code:
AخA
 
1
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>
Script Preparation code:
 
var arr = _.times(8000, n => `elem_${n}`);
var se = new Set(arr)
Tests:
  • includes

     
    arr.includes('elem_7999')
  • has

     
    se.has('elem_7999')
  • convert to set before includes

     
    var converted = new Set(arr);
    converted.has('elem_7999');