React JavaScript tutorial showing IntelliSense, debugging, and code navigation support in the Visual Studio Code editor.

VS Code provides IntelliSense within your JavaScript projects; for many npm libraries such as React, lodash, and express; and for other platforms such as node, serverless, or IoT. See Working with JavaScript for information about VS Code's JavaScript IntelliSense, how to configure it, and help troubleshooting common IntelliSense problems.

The Visual Studio Code editor has great support for writing and debugging Node.js applications. This tutorial takes you from Hello World to a full Express web application.

The JavaScript debugger in VS Code supports source maps that allow debugging transformed code. For example, TypeScript code is compiled to JavaScript, and many web applications …

The simplest way to try out the latest TypeScript features in VS Code is to install the JavaScript and TypeScript Nightly extension. You can also configure VS Code to use a specific TypeScript version.

What is jsconfig.json? The presence of jsconfig.json file in a directory indicates that the directory is the root of a JavaScript Project. The jsconfig.json file specifies the root files and the options for the features provided by the JavaScript language service. Tip: If you are not using JavaScript, you do not need to worry about jsconfig.json.

For example, if you are editing a JavaScript React file, you will get Emmet suggestions not only when writing markup but also while writing JavaScript. emmet.showAbbreviationSuggestions

This article describes the debugging features of VS Code and how to get started with debugging in VS Code. You also learn how you can use Copilot in VS Code to accelerate setting up your debugging configuration and starting a debugging session.

TypeScript is great for writing client-side code as well as Node.js applications and you can debug client-side source code with the built-in Edge and Chrome debugger.

If you'd like to see an example of React working with VS Code, check out the Using React in VS Code tutorial. It will walk you through creating an React application and configuring the launch.json file for the JavaScript debugger.