The picture above shows an example of a web app I am producing. It is a Christmas store I made with Angular.js. In order to add these libraries, make a folder called libs and download your libraries from the web. Save the libraries into libs. Then, in your index.html, add more of those script tags linking to those libraries. As your js starts to get complicated, you need something to debug it. This is where Google Chrome DevTools come in. Simply press F12 on your keyboard and it comes up. You can see your errors in the console. There is a lot of stuff in DevTools, but there is a course on Code School that’s free and helpful. You may need to save data on a server. This is where Node comes in, and a story for Part 3…