Run results for: RegEx vs For Loop (Optimized)

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36

Browser: Chrome 129

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

For Loop

7.9M/s

RegEx

3.5M/s

View exact numbers

Test name	Executions per second
✓ For Loop	7,861,111 Ops/sec
RegEx	3,507,120 Ops/sec

HTML Preparation code:

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++; }