English | Quizzpot

The class DomHelper

Apr 29, 2009 | English | By Crysfel | 2 Comments

Ext JS has a very useful tool to manipulate the DOM in a very simple way, so in this chapter we will see how to create elements, apply styles and insert them in the DOM.

Getting to know the object Element

Apr 28, 2009 | English | By Crysfel | 5 Comments

When we need to work with elements from the DOM (Document Object Model) it is very important to know the object “Element” because it contains methods that will make our job easier.

Quizz: Basic concepts of JavaScript (Part I)

Apr 27, 2009 | English | By Crysfel | 1 Comment

We have finished the object-oriented programming chapter, now is the time to do a little “Quizz”. Since the material we covered this time is quite large I decided to divide the evaluation in two quizzes, this is the quizz of the first half and later on I will publish the second half. Good luck!

Quizz: Basic concepts of JavaScript (Part I)

Inheritance in JavaScript

Apr 17, 2009 | English | By Crysfel | 1 Comment

JavaScript has a unique way of object creation and inheritance, this concept is called “prototypal inheritance”, basically an object can inherit methods and properties to other objects creating a prototype to create new objects.

Packages and namespace

Apr 09, 2009 | English | By Crysfel | 2 Comments

It’s important to remember that other developers or users could be using our code, that means we need to create code that can be run with other libraries without a problem.

Private and privileged methods in JavaScript

Apr 01, 2009 | English | By Crysfel | 1 Comment

This is a well known topic for many developers, but some people don’t think we can define private methods and privileged methods in JavaScript. In today’s chapter we will learn how to hide properties and methods of an object.

Private and privileged methods in JavaScript

Creating objects and public methods

Mar 30, 2009 | English | By Crysfel | No Comments

In JavaScript everything is an object, the functions, Strings, arrays, etc. But many developers use this language without really knowing these concepts of object oriented programming.

New Ext JS developer tool

Mar 26, 2009 | English | By Crysfel | 2 Comments

In the previous post we talked about the new version of Ext JS coming out very soon, but the greatest news is that the Ext team have developed a new tool to create interfaces faster and easier. Check it out!

Ext 3.0 will be release soon!

Mar 23, 2009 | English | By Crysfel | No Comments

We are very excited to let you know that in a couple of weeks the newest version of the Ext JS library will be released and it will happen at the first annual conference of Ext on April 14-16 in Orlando, Florida.

The context and the variable “this”

Mar 20, 2009 | English | By Crysfel | 1 Comment

The context is the object that is operating at the time of execution, in JavaScript your code will always have a context. This chapters shows how we can change or assigned the context to methods or functions.