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.

Environment variables hold important data that may be required by certain processes. Here's how you can configure them in ...

Before you say it, yes I know about cookies. The problem I have is I need to keep a LOT of numbers between refreshes, and was wondering if there is some way to mark an array variable as ...