Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Safari/537.36
Chrome 106
Windows
Desktop
2 years ago
Test name Executions per second
Includes 20409164.0 Ops/sec
Object[key] 18908094.0 Ops/sec
Script Preparation code:
AخA
 
var obj = (new Array(1000)).fill(null).reduce((prev, newVal) => {prev[Math.random() + ''] = Math.random() + ''; return prev; }, { sausage: 'tst' });
var array = Object.keys(obj);
Tests:
  • Includes

     
    array.includes('sausage')
  • Object[key]

     
    obj['sausage']