Introduction to bundled libraries

Just like you need different pieces to complete a picture, websites use special bits of code called libraries to add cool features and make sure everything runs without a hitch. AC comes with a handy set of these, all ready to go, which makes building a website a bit like having a head start in a race.

One of the main tools we use is jQuery, and we already covered how to use some of its methods and widgets in Chapter 9. It’s a favorite library for many developers because it’s easy to use and works well, no matter what web browser you’re using. With jQuery, we can do all sorts of things on a website, including making images slide, having information pop up when you click on something, and lots of other neat tricks—all without slowing things down.

AC uses jQuery in special ways to make online stores do exactly what we want them to do, such as show products in a fancy way or help you fill out your address easily when...