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 ...

Variables and arrays are used to store data to use within your code. A variable can store one piece of data whle an array can store multiple values. Inside a document.write() command, text in between ...

Performing JavaScript addition may seem like a simple task, ... because you could also attempt to add the number 2 in one variable to another variable whose value is "apple." ...

Dr. James McCaffrey presents a complete end-to-end demonstration of linear regression using JavaScript. Linear regression is ...