JavaScript Absolute Beginner’s Guide

18. Booleans and the Stricter === and !== Operators

In This Chapter

• Learn more about what goes on behind true and false

• Understand what boolean objects and functions do

• Find out the difference between simple inequality operators and strict inequality operators

While it’s polite to say that all types are interesting and fun to be around, you and I both know that is a lie. Some types are just boring. The boolean type is one such example. Here is the reason why. Whenever you initialize a variable using either true or false, you create a boolean:

var sunny = false;var traffic = true;

Congratulations. If you know just this, you are 80% of the way there in fully understanding how booleans operate. Of course, 80% isn’t really adequate when you ...