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Chapter 1. DOM and Data Types, the Ext JS Way

In this chapter, you will learn the following recipes:

  • Detecting browsers and platforms used by clients
  • Retrieving DOM nodes and elements
  • Acquiring references to Ext JS components
  • Running high-performance DOM queries
  • Encoding and decoding JSON
  • Encoding and decoding URL data
  • Determining the object type and converting empty references to a default value
  • Finding objects in an array and removing array items
  • Manipulating strings à la Ext JS
  • Effortless range checking for numbers
  • Formatting, parsing, and manipulating dates
  • Preventing naming conflicts and scoping non-global variables
  • Extending JavaScript objects, the Ext JS way
  • Adding features to the Ext JS classes
  • Building custom JavaScript classes that inherit the functionality of Ext JS
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