IntelliJ IDEA 2016.2 Help

TypeScript Support

In this section:


IntelliJ IDEA supports developing and running TypeScript source code. IntelliJ IDEA 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 typeScript.png icon.

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

Preparing for TypeScript development

  1. Make sure the JavaScript Support plugin is enabled. The plugin is bundled with IntelliJ IDEA and activated by default. If the plugin is not activated, enable it on the Plugins page of the Settings / Preferences Dialog as described in Enabling and Disabling Plugins.
  2. Make sure the Node.js plugin is installed and enabled. The plugin is not bundled with IntelliJ IDEA, but it can be installed from the JetBrains plugin repository as described in Installing, Updating and Uninstalling Repository Plugins and Enabling and Disabling Plugins.

Coding assistance

TypeScript support includes:

  • Coding assistance:

    This assistance can be provided either by IntelliJ IDEA itself, or based on the data from the built-in TypeScript compiler, or through integration with the TypeScript Language Service. Provision of coding assitance 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 IntelliJ IDEA itself.
    • 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 on the page become active and you can configure the behaviour of the compiler.
  • 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 IntelliJ IDEA 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: 23 November 2016