Book Image

PhoneGap 3 Beginner's Guide

By : Giorgio Natili
Book Image

PhoneGap 3 Beginner's Guide

By: Giorgio Natili

Overview of this book

<p>You don’t have to know complex languages like Objective C to compete in the ever-growing mobile market place. The PhoneGap framework lets you use your web development skills to build HTML and JavaScript-based mobile applications with native wrappers that run on all the major mobile platforms, including Android, iOS, and Windows Phone 8.</p> <p>"PhoneGap 3 Beginner's Guide" will help you break into the world of mobile application development. You will learn how to set up and configure your mobile development environment, implement the most common features of modern mobile apps, and build rich, native-style applications. The examples in this book deal with real use case scenarios, which will help you develop your own apps, and then publish them on the most popular app stores.</p> <p>Dive deep into PhoneGap and refine your skills by learning how to build the main features of a real world app.</p> <p>"PhoneGap 3 Beginner's Guide" will guide you through the building blocks of a mobile application that lets users plan a trip and share their trip information. With the help of this app, you will learn how to work with key PhoneGap tools and APIs, extend the framework’s functionality with plug-ins, and integrate device features such as the camera, contacts, storage, and more. By the time you’re finished, you will have a solid understanding of the common challenges mobile app developers face, and you will know how to solve them.</p>
Table of Contents (22 chapters)
PhoneGap 3 Beginner's Guide
Credits
Foreword
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Time for action – using UglifyJS with the Closure Compiler


Let's see how you can get a compressed version of the same files you worked on with the Google Closure Compiler.

  1. Open your command-line tool and go to the sample folder created to test the Closure Compiler.

  2. Type the following command in order to concatenate the JavaScript files and to run the UglifyJS2 compressor:

    $ cat test.js index.js | uglifyjs --inline-script -o mytest.min.js
    
  3. Open the generated file and take a look to the source code; you will get the following JavaScript:

    var test=function(){var main=function(){alert("executing manin");internal()};var internal=function(){alert("executing internal")};return{init:main}}();var test=test.init();
  4. Insert the script tag in the HTML page and open it in a browser.

What just happened?

You created a compressed version of two simple JavaScript files. As you can see the output is rather different from the one created with the Closure Compiler. One of the main features of UglifyJS2 is that the...