Book Image

Object-Oriented JavaScript

By : Stoyan Stefanov, Stoyan STEFANOV
Book Image

Object-Oriented JavaScript

By: Stoyan Stefanov, Stoyan STEFANOV

Overview of this book

Table of Contents (18 chapters)
Object-Oriented JavaScript
About the Author
About the Reviewers
Built-in Functions
Regular Expressions


You have now completed the introduction to the fundamental concepts related to functions in JavaScript. You've been laying the groundwork that will allow you to quickly grasp the concepts of object-oriented JavaScript and the patterns that are in use in modern JavaScript programming. So far, we've been avoiding the OO features, but as you have reached this point in the book, it is only going to get more interesting from here on in. Let's take a moment and review the topics discussed in this chapter:

  • The basics of how to define and invoke (call) a function

  • Function parameters and their flexibility

  • Built-in functions—parseInt(), parseFloat(), isNaN(), isFinite(), eval(), and the four functions to encode/decode a URL

  • The scope of variables in JavaScript—no curly braces scope, variables have only function scope; functions have lexical scope and follow a scope chain

  • Functions as data—a function is like any other piece of data that you assign to a variable and a lot of interesting applications...