Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Chrome 129
Windows
Desktop
5 months ago
Test name Executions per second
RegEx 3507119.5 Ops/sec
For Loop 7861111.0 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 = true;
    let i = 0;
    let len = string.length - 1;
    while (isPasswordValid) {
        if (i >= len) break;
        let code = string.charCodeAt(i);
        if (code <= 48 || code >= 57) isPasswordValid = false;
        i++;
    }