Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.66 Safari/537.36
Chrome 87
Windows
Desktop
4 years ago
Test name Executions per second
includes 5640741.5 Ops/sec
indexOf 7570530.0 Ops/sec
Script Preparation code:
AخA
 
var text = 'jdkxshklhkhskhskshkjaFREDERICKBCDBKlkhdslkbsklbsjbjkd';
Tests:
  • includes

     
    text.includes('FREDERICK');
  • indexOf

     
    text.indexOf('FREDERICK') !== -1;