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 ...

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.

Our first lesson is going to be very simple and consist of learning about basic variables and data types. For the lessons in this series, we're going to use JavaScript as a model because it's a ...