The question is where to find jQuery. Well, you can find it at http://jquery.com/. I have also attached the file with this book. You can download it from there.
If you go to http://jquery.com/, you will see the following screen:
There are two versions of jQuery:
2.x.x. There are just a few differences between these versions. The compressed version's code is not readable as the version does not have blank spaces and comments; however, the uncompressed version is clearly coded and formatted, it also has important comments to understand the code and functions' work. If you want to learn how a function of jQuery works, I would suggest you to go through the jQuery uncompressed version.
Throughout this chapter, we will use the
2.x.x version. The latest version of