Run results for: URL Origin: startsWith vs Regex various

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.0.0 Safari/537.36 OPR/99.0.0.0

Browser: Opera 99

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Regular Expression	33556524.0 Ops/sec
StartsWith	112922352.0 Ops/sec

Tests:

Regular Expression
const https = 'https://www.example.com'; const slash = '//www.example.com'; const www = 'www.example.com'; /^(?:https?:)?\/\/(?:www\.)?/.test(https); /^(?:https?:)?\/\/(?:www\.)?/.test(slash); /^(?:https?:)?\/\/(?:www\.)?/.test(www);
StartsWith
const https = 'https://www.example.com'; const slash = '//www.example.com'; const www = 'www.example.com'; if(https.startsWith('http') || https.startsWith('//') || https.startsWith('www.')) return null; if(slash.startsWith('http') || slash.startsWith('//') || slash.startsWith('www.')) return null; if(www.startsWith('http') || www.startsWith('//') || www.startsWith('www.'))return null;