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.

Microsoft's code editor Visual Studio Code now ships with a built-in Javascript debugger.

That built-in experience comes via vscode-js-debug, a GitHub project described as a Debugger Adapter Protocol -based JavaScript debugger that works with Node.js, Chrome, Edge, WebView2 and VS Code ...

For Angular, Vue, React and more, just type a few keystrokes to quickly insert a small block of code functionality to speed up your JavaScript development in VS Code.