WebStorm 2016.3 Help

TypeScript Support

In this section:

Introduction

WebStorm supports developing and running TypeScript source code. WebStorm recognizes *.ts files, and allows you to edit them providing full range of coding assistance without any additional steps from your side. TypeScript files are marked with the icon.

To run, debug, and test your code you will need it translated into JavaScript which requires a transpiler.

Preparing for TypeScript development

Make sure the JavaScript Support and Node.js plugins are enabled. The plugins are bundled with WebStorm and activated by default. If the plugins are not activated, enable them on the Plugins page of the Settings / Preferences Dialog as described in Enabling and Disabling Plugins.

Coding assistance

TypeScript support includes:

  • Coding assistance:

    This assistance can be provided either by WebStorm itself, or based on the data from the built-in TypeScript compiler, or through integration with the TypeScript Language Service. Provision of coding assistance is configured on the TypeScript page of the Settings / Preferences Dialog:

    • Select the Use TypeScript Service check box to get native support from the TypeScript Language Service according to the up-to-date specifications. In this case syntax and error highlighting is performed based on the annotations retrieved from the TypeScript Language Service while code completion lists contain both suggestions from the TypeScript Language Service and suggestions calculated by WebStorm itself. To get only suggestions from WebStorm, click Configure and clear the Code completion check box in the Service Options dialog box that opens.

      By default, the Use TypeScript Service check box is selected.

    • Select the Enable TypeScript Compiler check box to active the built-in compiler. When the check box is selected, syntax highlighting and code completion are provided based only on the data from the built-in Typescript compiler. After you select this check box, the fields below in the area become active and you can configure the behaviour of the compiler. By default, the check box is cleared.
  • Refactoring:
    • Common refactoring procedures, such as extract method , inline, rename/move, etc.
    • TypeScript-specific refactoring procedures, such as change signature, extract parameter, extract variable.

    See JavaScript-Specific Refactorings for details.

  • Code generation
    • Generating code stubs based on file templates during file creation.
    • Ability to create line and block comments (Ctrl+Slash/Ctrl+Shift+Slash).
    • Downloading stubs for TypeScript definition files and configuring them as a WebStorm JavaScript library (see Configuring JavaScript Libraries).
    • Generating import statements for modules, classes, and any other symbol that can be exported and called as a type, see Creating Imports, section Importing TypeScript Symbols.

      You can also configure the type of quotes to be used in import statements by choosing Double quotes or Single quotes from the String literal type drop-down list on the Code Style. TypeScript page of the Settings dialog box.

    • Configuring automatic insertion or skipping the public access modifier in generated code.
  • Navigation and search through the source code:
  • Transpiling to JavaScript for further running, debugging, and testing, see Running TypeScript and Debugging TypeScript.

See Also

Last modified: 1 December 2016