Transform type definitions declared using CommonJS to type definitions that do not rely on a module system

Currently in the process of transitioning from VS 2013 with TS 1.8 to VS 2017 with TS 2.5.

As part of this update, it appears that I need to upgrade typings for react and other dependencies.

Unfortunately, the new typings are utilizing commonjs :

https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/react-dom

The previous typings did not use any module system.

Is there a way to convert commonjs d.ts files into "no modules" d.ts files?

Answer №1

React's typings include the special declaration export as namespace React, allowing you to access the global variable React without using any module system.

For example, the following code successfully compiles and passes type checks with the latest versions of @types/react, @types/react-dom, and @types/react-scripts:

ReactDOM.render(
  <h1>Hello, world!</h1>,
  document.getElementById('root')
);

More information on the unique export as namespace feature can be found here: https://github.com/Microsoft/TypeScript/wiki/What's-new-in-TypeScript#support-for-umd-module-definitions

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