When we talk about instruments, sometimes the guitar gets all the credit. Of course guitars are great, but an electric guitar on its ownâeven a hollow-bodyâis only so loud. For giving one of the world's favorite instruments its voice, guitar amplifiers deserve a little love too.
This book treats JavaScript as a serious object-oriented language, showing you how to build robust, maintainable, and powerful libraries and applications. Along the way, we cover many of the recent innovations such as AJAX, JSON, and interesting design and coding patterns.
Wrapper classes in Java are immutable so the runtime can have only two Boolean objects - one for true, one for false - and every variable is a reference to one of those two. And since they can never be changed, you know they'll never be pulled out from under you.