Now that you understand what variables are and how they work, we can try using them in some actual JavaScript code. Creating Variables and Using the JavaScript Alert() Function.

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.

All of this means, assuming the above JavaScript code was placed on a web server, reachable at host:8080, an attacker could sneak in a GET parameter representing the invisible variable, in its URL ...

I'm writing a Javascript to validate a form. The form is created dynamically and has a grid of dropdown menus, in a square.(3x3 or 5x5, for now) I want to create a loop that will go through each ...

A typical reference to another JavaScript file (placed at the top of the file you're entering code into) looks like this: /// <reference path="Utilities.js" /> Now, as you add JavaScript code to the ...