TypeScript

Node interpreter

In this field, specify the Node.js interpreter to use. This can be a local Node.js interpreter or a Node.js on Windows Subsystem for Linux.

TypeScript

In this field, specify the version of the TypeScript to use (WebStorm displays the currently chosen version).

• By default, the typescript package from the project's node_modules folder is used.

• Bundled: choose this option to use the typescript package that is shipped with WebStorm without attempting to find another one.

• Select: choose this option to use a custom typescript package instead of the one bundled with WebStorm. In the dialog that opens, choose the path to the relevant package.

• If your project package manager is Yarn 2, you have to use the typescript package installed via Yarn 2. In this case, yarn:package.json:typescript is by default selected.

  Learn more about package managers from npm and Yarn.

TypeScript Language Service

Select this checkbox to get native support from the TypeScript Language Service according to the up-to-date specifications. As a result:

• Syntax and error highlighting is based on the annotations from the TypeScript Language Service.

• Completion lists contain both suggestions from the TypeScript Language Service and suggestions calculated by WebStorm.

• TypeScript code is compiled into JavaScript.

tip

You can enhance completion in JavaScript files with suggestions from the TypeScript Language Service. To do that, add 'allowJS' : true to your jsconfig.json or tsconfig.json file. Learn more from Code completion and Configure JavaScript libraries.