I was working on my next tutorial, and I wanted to stop and highlight this particular video. I often mention my Twitter feed, where I reference several videos and articles that have been helpful in my growth as a developer, especially in my latest foray into AngularJS. Twitter is my scratch pad for the Internet. When I find something useful, I used to make a bookmark, whether at home or at work. Then, I wouldn't have that bookmark when I wasn't at home or at work, or I was on my laptop and not my iPad. Syncing up all my bookmarks seemed a lot of trouble. So instead, I just tweeted every useful link, so I could find it again anywhere. The really cool thing is, other people see my links and find them useful as well. I am glad to help other people discover useful things.
Well, Tony Alicea has a great, great video on how to use the fragment identifier to render single page applications here: https://youtu.be/qvHecQOiu8g. I highly recommend watching it, and the rest of the series. He explains in very simple terms how to use hash tags (remember anchors? Does anyone use anchors in web pages anymore?) to essential mimic the functionality of Ajax, without all the overhead of Ajax. In simple terms, a single page application is loaded once, and a portion of the page is reloaded on demand. This means you don't see a flickering of the web page, which happens when you have to reload the entire page. All of this is possible through the use of fragment identifiers (hash tags) and the AngularJS location service. This is a huge improvement over earlier web-based applications.