Some call it magic -- the ability to make objects appear suddenly out of nowhere. You can create this kind of magic on your website using a few lines of JavaScript ...

As with almost every programming language, JavaScript treats various types of values differently. A string like “Hello world” is very different from a number like 42. But what types are ...

JavaScript variables hold a wide variety of information and can be used with virtually any data type. Here's how to use variables to store numbers, text strings, objects, and more.