get a referral url with javascript code example

Example 1: get site url javascript

document.URL
> "http://example.com/page1.html"

document.location.href
> "http://example.com/page1.html"

document.location.pathname
> "/page1.html"

document.location.origin
> "http://example.com"

Example 2: js get url parameter

const queryString = window.location.search;
const urlParams = new URLSearchParams(queryString);
const code = urlParams.get('code')