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.

Scope in JavaScript refers to context (or portion) of the code which determines the accessibility (visibility) of variables. In JavaScript, we have two types of scope, local , and global.

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

In this lab we'll practice declaring and assigning values to variables. We'll also go over how to read the test document. Understanding how to read the tests can be a valuable tool in figuring out ...

With JavaScript array variables, we can store several pieces of data in one place. You start an array declaration with an opening square bracket, end it with a closing square bracket, and put a comma ...

You can find or see names and values of Environment Variables in using Windows Settings, Registry, Command Prompt and PowerShell.