javascript - Usage of Hash(#) in URL

Question

I was wondering is there any use of hash other than as an anchor in URL. I read about it here getting the full url including query string after hash . What is state information for the client? Please help.

Answer 1

The hash can be used also for single page applications, so instead of using it to navigate to a point in a page you use the hash as a means for navigated from page to page. The advantage of this is that it does not require a page refresh.

There is also a method called hashbanging which is used for single page applications and is used for helping ajax applications more indexible.

There are a few good articles on the subject

• https://github.com/browserstate/history.js/wiki/Intelligent-State-Handling
• http://danwebb.net/2011/5/28/it-is-about-the-hashbangs
• https://developers.google.com/webmasters/ajax-crawling/