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Part: I Getting Started > How JavaScript Programs Work

Hour 3. How JavaScript Programs Work

Welcome to the end of Part I of this book. In the first couple of hours, you've learned what JavaScript is, created a simple script, and learned the variety of things JavaScript can do.

In this, the final hour of Part I, you'll learn a few basic concepts and script components that you'll use in just about every script you write. This will prepare you for the remaining hours of the book, in which you'll explore specific JavaScript functions and features.

Hour 3 covers the following topics:

  • Organizing scripts using functions

  • What objects are and how JavaScript uses them

  • How JavaScript can respond to events

  • An introduction to conditional statements and loops

  • How browsers execute scripts in the proper order

  • Adding comments to document your JavaScript code


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