This book is intended for Web developers who understand how to build Web applications and have a basic understanding of JavaScript. JavaScript knowledge should include the ability to do Document Object Model (DOM) manipulation and the ability to use object-oriented libraries. Basic understanding of PHP is also helpful for understanding many of the examples in the book, but it isn’t required because this book focuses on client-side JavaScript programming. Understanding the stateless nature of HTTP and how tools (such as cookies) can be used to work around this stateless nature is also useful.

As I wrote this book, I assumed that you had knowledge of Hypertext Markup Language (HTML) and Cascading Style Sheets (CSS). If you are ...

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