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.

Nowadays JavaScript has three different keywords to declare a variable — var, let and, const. Each has its own properties and particularities. Let’s start by making a simple comparison table ...

And for developers, setting environment variables can come in handy. For example, you might want to set a temporary variable for the version of your distribution you use, so downloading the ...