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 ...

Variables hold a wide variety of information temporarily. The JavaScript data types that can be stored in a variable include: JavaScript variables can hold a few other kinds of data, but these are ...

So how do you putt a variable to your code (or declare a variable, as it's more traditionally called)? In JavaScript ... but they make for a good way to test your code, to make sure it works ...