When you define and execute a function in JavaScript and Node, the variables that exist around it are available to the function. This simple idea, known as a closure, gives us some serious power.

If you want to install JavaScript in VSCode, install Visual Studio Code & Node.JS, create and run a JavaScript program, and then take these steps.

An introduction to the Chakra JavaScript engine and how it can be used within a Windows 10 app to execute JavaScript.