Introduction

The purpose of this book is to offer easy access to the basic JavaScript knowledge I’ve gathered since I’ve been a professional Web developer.

Since this book reflects my knowledge, it also reflects the limitations of that knowledge. I am a Web developer, not an application developer—which means I talk about browser incompatibilities, accessibility, low-level syntax, and cooperation with the HTML structural layer, instead of modules, design principles, and abstraction layers.

During the eight years that I’ve earned a living by making Web sites, I have used some JavaScript features extensively but largely ignored others. I always took the tools I needed to do the job I was paid to do, and it turns out that the JavaScript toolbox contains ...

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