Book Image

Modular Programming with JavaScript

Book Image

Modular Programming with JavaScript

Overview of this book

Programming in the modular manner is always encouraged for bigger systems—it is easier to achieve scalability with modular programming. Even JavaScript developers are now interested in building programs in a modular pattern. Modules help people who aren’t yet familiar with code to find what they are looking for and also makes it easier for programmers to keep things that are related close together. Designing and implementing applications in a modular manner is highly encouraged and desirable in both simple and enterprise level applications. This book covers some real-life examples of modules and how we can translate that into our world of programming and application design. After getting an overview of JavaScript object-oriented programming (OOP) concepts and their practical usage, you should be able to write your own object definitions using the module pattern. You will then learn to design and augment modules and will explore the concepts of cloning, inheritance, sub-modules, and code extensibility. You will also learn about SandBoxing, application design, and architecture based on modular design concepts. Become familiar with AMD and CommonJS utilities. By the end of the book, you will be able to build spectacular modular applications in JavaScript.
Table of Contents (17 chapters)
Modular Programming with JavaScript
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
2
Review of Important JavaScript OOP Concepts
Index

Generating our application's content area


If you have read the previous sections of this chapter, you have a pretty good grasp of what module augmentation is by now. You also know of a couple of techniques to add dynamic properties to our modules using augmentation.

As it stands, our application (Images Inc.) has code that dynamically generates the header and footer sections of our pages. But we still have an empty space in the middle (the content area), which needs to be populated with content.

Let's put the techniques that we have learned in this chapter to good use and add functionality to our application that will generate the content area dynamically.

Note that the refactored augmenting code in Modules_3.js is now as follows:

(function(originalModule){
    
    if(!originalModule){
        ImagesInc_LoggingHandler.logError('originalModule was not found to be augmented!');
        return false;  
    }
    
    //object definition for the index.html content area
    originalModule.mainContentContainerDef...