Object-Oriented JavaScript

12th
MAY

Posted by Relaxtubes under JavaScript, Programming

Once listed in the “nice to have” sections of job postings, these days the knowledge of JavaScript is a deciding factor when it comes to hiring web developers. And rightly so. Where in the past we used to have the occasional few lines of JavaScript embedded in a web page, now we have advanced libraries and extensible architectures, powering the “fat-client”, AJAX-type rich internet applications.JavaScript is the language of the browser, but it’s also heavily employed in many other environments: server-side programming, desktop applications, application extensions and widgets. It’s a pretty good deal: you learn one language and then code all kinds of different applications. While this book has one chapter specifically dedicated to the web browser environment including DOM, events, and AJAX tutorials, the rest is applicable to all the other environments 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. After reading this book, you’ll be prepared to ace your JavaScript job interview and even impress with some bits that the interviewer maybe didn’t know. You should read this book if you want to be able to take your JavaScript skills to a new level of sophistication.

What you will learn from this book

Learn to think in JavaScript, the language of the web browser

The basics of object-oriented programming, and how they apply to JavaScript

Set up and use your training environment (Firebug)

Master data types, operators, and flow control statements

Understand functions: usage patterns, variable scope, and built-in functions

Closures demystified

Create and use objects

Understand and use prototypes

Reuse code with common patterns for inheritance

Understand and work with the BOM (Browser Object Model)

The DOM (Document Object Model) – accessing, modifying, adding, and deleting nodes

Build responsive web pages with AJAX

JSON (JavaScript Object Notation)

Listen and respond to browser events

Apply design patterns to solve common problems

Adopt coding patterns that unleash the unique power of the language

Make your programs cleaner, faster, and compatible with other programs and libraries

Achieve missing object-oriented features in JavaScript such as private properties and methods

Who this book is written for

The book requires no prior knowledge of JavaScript and works from the ground up to give you a thorough grounding in this powerful language. If you do already know some JavaScript, you will find plenty of eye-openers as you discover just what the language can do.

This book takes a do-it-yourself approach when it comes to writing code, because the best way to really learn a programming language is by writing code. You are encouraged to type code into Firebug’s console, see how it works and then tweak it and play around with it. There are practice questions at the end of each chapter to help review what you have learned.

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