Run results for: Parse URL domain

Run details:

User agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36

Browser: Chrome 67

Operating system: Windows 7

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
URL constructor	172691.3 Ops/sec
Naive regexp	877766.9 Ops/sec

Script Preparation code:

window.MY_URL = "http://jblas:password@mycompany.com:8080/mail/inbox?msg=1234&type=unread#msg-content";
window.RX_DOMAIN = /^\w+:\/\/(?:[\w:-]+@)?([^:/#]+)/;

Tests:

URL constructor
const url = new URL(window.MY_URL); window.result = url.hostname;
Naive regexp
window.result = window.MY_URL.match(window.RX_DOMAIN)[1];

Run results for: Parse URL domain

URL constructor

Naive regexp