Run results for: RegEx vs For Loop ..... no shit...

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Firefox/91.0

Browser: Firefox 91

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
RegEx	4305343.0 Ops/sec
For Loop	32674252.0 Ops/sec

HTML Preparation code:

var string = ")odas4gsdfsdfpassw";

AخA
 
var string = ")odas4gsdfsdfpassw";

Script Preparation code:

var string = ")odas4gsdfsdfpassw";

 
var string = ")odas4gsdfsdfpassw";

Tests:

RegEx

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

 
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++)
{
	let code = string.charCodeAt(i);
  	if (code >= 48 && code <= 57)
    {
      isPasswordValid = true;
      break;
    }
}

 
let isPasswordValid = false;for (let i = 0; i < string.length; i++){    let code = string.charCodeAt(i);    if (code >= 48 && code <= 57)    {      isPasswordValid = true;      break;    }}