For an instance of a class, this will reveal the class itself instead of where the instance is defined.
TYPESCRIPT FUNCTION ANNOTATION CODE
VS Code also includes JSX-specific features such as autoclosing of JSX tags in TypeScript: To use JSX in your TypeScript, use the *.tsx file extension instead of the normal *.ts: VS Code's TypeScript features also work with JSX. You can disable auto imports by setting "": false. In this example, VS Code adds an import for Hercules to the top of the file:
If you choose one of the suggestions from another file or module, VS Code will automatically add an import for it. Just start typing to see suggestions for all available TypeScript symbols in your current project. Auto importsĪutomatic imports speed up coding by helping you find available symbols and automatically adding imports for them. You can enable this by setting "": true.Īs with the references CodeLens, you can click on the implementation count to quickly browse a list of all implementations. The TypeScript implementations CodeLens displays the number of implementors of an interface: You can enable this by setting "": true in the User Settings file.Ĭlick on the reference count to quickly browse a list of references: The TypeScript references CodeLens displays an inline count of reference for classes, interfaces, methods, properties, and exported objects: Return type inlay hints show the return types of functions that don't have an explicit type annotation. Parameter type hints show the types of implicitly typed parameters.
Property type inlay hints show the type of class properties that don't have an explicit type annotation. Variable type inlay hints show the types of variables that don't have explicit type annotations.
TYPESCRIPT FUNCTION ANNOTATION INSTALL
You can install extensions to get additional snippets or define your own snippets for TypeScript. VS Code includes basic TypeScript snippets that are suggested as you type Use ⇧⌘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 a TypeScript function call, VS Code shows information about the function signature and highlights the parameter that you are currently completing: You can also show the hover information at the current cursor position with the ⌘K ⌘I (Windows, Linux Ctrl+K Ctrl+I) keyboard shortcut. Hover over a TypeScript symbol to quickly see its type information and relevant documentation: VS Code provides IntelliSense for individual TypeScript files as well as TypeScript tsconfig.json projects. IntelliSense shows you intelligent code completion, hover information, and signature help so that you can write code more quickly and correctly. If you'd like to know more about general editing features in VS Code, such as keyboard shortcuts, multi-cursors, search, and find and replace, you can read Basic Editing. This article goes into depth on the editing and programming language features that come built-in to VS Code.
Visual Studio Code has great editing support for TypeScript.
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