Run results for: RegEx vs For Loop

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 14_7 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/93.0.4577.78 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 93

Operating system: iOS 14.7

Device Platform: Mobile

Date tested: 3 years ago

Test name	Executions per second
RegEx	2680571.8 Ops/sec
For Loop	476107.8 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; } }

Run results for: RegEx vs For Loop

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RegEx

For Loop