Run results for: RegEx vs For Loop

Run details:

User agent: Mozilla/5.0 (Linux; Android 11; BE2029) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.104 Mobile Safari/537.36 OPR/67.1.3508.63168

Browser: Opera Mobile 67

Operating system: Android

Device Platform: Mobile

Date tested: 2 years ago

Test name	Executions per second
RegEx	1118532.0 Ops/sec
For Loop	283407.8 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