Introduction

Much has changed since the first edition of JavaScript Step by Step was written in 2007: the underlying JavaScript specification received a major update; Microsoft released new versions of Internet Explorer and Windows; the Chrome browser came of age, as did mobile web usage; and JavaScript development frameworks have matured and are now ubiquitous.

This third edition of JavaScript Step by Step builds on the foundation laid down by the first two editions. While the underlying architecture of the JavaScript language has remained largely the same, use of JavaScript has become pervasive, with huge year-over-year increases and an expanded importance to developers. With that in mind, the layout and coverage of the book have also remained ...

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