How to Get Current Page URL Information Using JavaScript

1. Set or get the file name or path of the specified object.

alert(window.location.pathname);

2. Set or get the entire URL as a string.

alert(window.location.href);

3. Set or get the port number associated with the URL.

alert(window.location.port);

4. Set or get the protocol part of the URL.

alert(window.location.protocol);

5. Set or get the fragment following the hash symbol ("#") in the href attribute.

alert(window.location.hash);

6. Set or get the hostname and port number of the location or URL.

alert(window.location.host);

7. Set or get the part following the question mark in the href attribute.

alert(window.location.search);

8. Get the value of a variable (extract the part after the equals sign).

var url = window.location.search;
// alert(url.length);
// alert(url.lastIndexOf('='));
var loc = url.substring(url.lastIndexOf('=') + 1, url.length);

9. Get the domain name of the current webpage.

var domain = document.domain;

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