← 返回首页
JavaScript in Visual Studio Code
Visual Studio Code
Download

📼 Rewatch VS Code Live at MS Build 2026

All Docs

Languages

Topics Overview JavaScript JSON HTML Emmet CSS, SCSS and Less TypeScript Markdown PowerShell C++ Java PHP Python Julia R Ruby Rust Go T-SQL C# .NET Swift Working with JavaScript Node.js Tutorial Node.js Debugging Deploy Node.js Apps Browser Debugging Angular Tutorial React Tutorial Vue Tutorial Debugging Recipes Performance Profiling Extensions Tutorial Transpiling Editing Refactoring Debugging Quick Start Tutorial Run Python Code Editing Linting Formatting Debugging Environments Testing Python Interactive Django Tutorial FastAPI Tutorial Flask Tutorial Create Containers Deploy Python Apps Python in the Web Settings Reference Getting Started Navigate and Edit Refactoring Formatting and Linting Project Management Build Tools Run and Debug Testing Spring Boot Modernizing Java Apps Application Servers Deploy Java Apps GUI Applications Extensions FAQ Intro Videos GCC on Linux GCC on Windows GCC on Windows Subsystem for Linux Clang on macOS Microsoft C++ on Windows Build with CMake CMake Tools on Linux CMake Quick Start C++ Dev Tools for Copilot Editing and Navigating Debugging Configure Debugging Refactoring Settings Reference Configure IntelliSense Configure IntelliSense for Cross-Compiling FAQ Intro Videos Get Started Navigate and Edit IntelliCode Refactoring Formatting and Linting Project Management Build Tools Package Management Run and Debug Testing FAQ
Copy as Markdown

On this page there are 26 sections

JavaScript in Visual Studio Code

Visual Studio Code includes built-in JavaScript IntelliSense, debugging, formatting, code navigation, refactorings, and many other advanced language features.

Most of these features just work out of the box, while some may require basic configuration to get the best experience. This page summarizes the JavaScript features that VS Code ships with. Extensions from the VS Code Marketplace can augment or change most of these built-in features. For a more in-depth guide on how these features work and can be configured, see Working with JavaScript.

IntelliSense

IntelliSense shows you intelligent code completion, hover information, and signature information so that you can write code more quickly and correctly.

Sorry, your browser doesn't support HTML 5 video.

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.

JavaScript projects (jsconfig.json)

A jsconfig.json file defines a JavaScript project in VS Code. While jsconfig.json files are not required, you will want to create one in cases such as:

  • If not all JavaScript files in your workspace should be considered part of a single JavaScript project. jsconfig.json files let you exclude some files from showing up in IntelliSense.
  • To ensure that a subset of JavaScript files in your workspace is treated as a single project. This is useful if you are working with legacy code that uses implicit globals dependencies instead of imports for dependencies.
  • If your workspace contains more than one project context, such as front-end and back-end JavaScript code. For multi-project workspaces, create a jsconfig.json at the root folder of each project.
  • You are using the TypeScript compiler to down-level compile JavaScript source code.

To define a basic JavaScript project, add a jsconfig.json at the root of your workspace: