Chapter 13. Code for Reuse: Extending Ext JS

In this chapter, we'll discuss how we can create our own custom components by extending the Ext JS library. We'll talk about how we can create our own namespaces, differentiating our custom components from others. We'll also discuss some other core object-oriented concepts (just enough to understand what we need here) and the concept of Event-Driven application architecture.

Object-oriented JavaScript

Over the last several years, we've seen a drastic shift with regards to client-side scripting in browser-based web applications. JavaScript has become the defacto standard in client-side scripting, with support for it built into every major browser available.

The issue has always been in each browser's implementation ...

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