When you select one of these suggestions, VS Code automatically adds an import for it to the top of the file.
Auto importsĪutomatic imports speed up coding by suggesting available variables throughout your project and its dependencies. Press ⇧⌘Space (Windows, Linux Ctrl+Shift+Space) to manually trigger signature help. Signature help is shown automatically when you type a ( or, within a function call. Signature HelpĪs you write JavaScript function calls, VS Code shows information about the function signature and highlights the parameter that you are currently completing: The ⌘K ⌘I (Windows, Linux Ctrl+K Ctrl+I) keyboard shortcut shows this hover information at the current cursor position. Hover over a JavaScript symbol to quickly see its type information and relevant documentation. To disable JSDoc comment suggestions, set "": false. Quickly create JSDoc comments for functions by typing /** before the function declaration, and select the JSDoc comment snippet suggestion: You can optionally even use the type information from JSDoc comments to type check your JavaScript. VS Code understands many standard JSDoc annotations, and uses these annotations to provide rich IntelliSense. The editor.snippetSuggestions setting also lets you change where snippets appear in the suggestions: at the top ( "top"), at the bottom ( "bottom"), or inlined ordered alphabetically ( "inline"). Tip: To disable snippets suggestions, set editor.snippetSuggestions to "none" in your settings file. There are many extensions that provide additional snippets, including snippets for popular frameworks such as Redux or Angular. VS Code includes basic JavaScript snippets that are suggested as you type A notification is shown if the file is not part of any jsconfig.json project. This command opens the jsconfig.json that references the JavaScript file. Tip: To check if a JavaScript file is part of JavaScript project, just open the file in VS Code and run the JavaScript: Go to Project Configuration command. See Working with JavaScript for more advanced jsconfig.json configuration. To define a basic JavaScript project, add a jsconfig.json at the root of your workspace: You are using the TypeScript compiler to down-level compile JavaScript source code.For multi-project workspaces, create a jsconfig.json at the root folder of each project. If your workspace contains more than one project context, such as front-end and back-end JavaScript code.This is useful if you are working with legacy code that uses implicit globals dependencies instead of imports for dependencies. To ensure that a subset of JavaScript files in your workspace is treated as a single project.jsconfig.json files let you exclude some files from showing up in IntelliSense. If not all JavaScript files in your workspace should be considered part of a single JavaScript project.While jsconfig.json files are not required, you will want to create one in cases such as: JavaScript projects (jsconfig.json)Ī jsconfig.json file defines a JavaScript project in VS Code.
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See Working with JavaScript for information about VS Code's JavaScript IntelliSense, how to configure it, and help troubleshooting common IntelliSense problems. 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. Sorry, your browser doesn't support HTML 5 video. IntelliSense shows you intelligent code completion, hover information, and signature information so that you can write code more quickly and correctly. For a more in-depth guide on how these features work and can be configured, see Working with JavaScript. Extensions from the VS Code Marketplace can augment or change most of these built-in features. This page summarizes the JavaScript features that VS Code ships with. Most of these features just work out of the box, while some may require basic configuration to get the best experience. Visual Studio Code includes built-in JavaScript IntelliSense, debugging, formatting, code navigation, refactorings, and many other advanced language features.
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