Variables and Types

We can define several types of variables to use in our code:

var myNumber = 3;                   // a number
var myString = "Hello, World!"      // a string
var myBoolean = true;               // a boolean

A few notes about variable types in JavaScript:

    In JavaScript, the Number type can be both a floating point number and an integer.
    Boolean variables can only be equal to either true or false.
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