Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 11_1_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.141 Safari/537.36
Chrome 87
Mac OS X 11.1.0
Desktop
4 years ago
Test name Executions per second
RegEx 2380404.8 Ops/sec
For Loop 399308.2 Ops/sec
HTML Preparation code:
AخA
 
1
var string = "passw)odas4gsdfsdf";
Script Preparation code:
 
var string = "passw)odas4gsdfsdf";
Tests:
  • RegEx

     
    let isPasswordValid = false;
    const number = new RegExp('(?=.*[0-9])');
    isPasswordValid = number.test(string);
  • For Loop

     
    let isPasswordValid = false;
    for (let i = 0; i < string.length; i++)
    {
        if (string[i] >= '0' && string[i] <= '9')
        {
          isPasswordValid = true;
          break;
        }
    }