Chapter 4
Controlling the Flow of JavaScript
IN THIS CHAPTER
Understanding how you control the flow of JavaScript
Setting up your code to make decisions
Understanding code looping
Setting up code loops
Avoiding the dreaded infinite loop
A good programmer is someone who always looks both ways before crossing a one-way street.
—DOUG LINDER
If left to its own devices, the web browser will process HTML and JavaScript code in its default way. Nothing is inherently wrong with that default, but if you stand back and just let the browser do its standard thing, the result will be a standard-issue web page.
The secret to producing beautiful and lively web pages is to wrest control from the web browser and take matters into your own hands. You learn how to break out of the browser’s default layout flow in Book 5. Here, I’m talking JavaScript, so you need to learn how to break out of the browser’s default script-processing flow.
The default script flow means that the browser processes the code ...
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