Run results for: RegEx vs For Loop

Run details:

User agent: Mozilla/5.0 (Android 13; Mobile; rv:138.0) Gecko/138.0 Firefox/138.0

Browser: Firefox Mobile 138

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

For Loop

6.5M/s

RegEx

2.0M/s

View exact numbers

Test name	Executions per second
✓ For Loop	6,514,752 Ops/sec
RegEx	2,037,067 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 = false; for (let i = 0; i < string.length; i++) { let code = string.charCodeAt(i); if (code >= 48 && code <= 57) { isPasswordValid = true; break; } }