Some third-party dependencies do not feature built-in support for TypeScript, but type definitions are available in a separate npm module. An example of a module with external support for TypeScript is the react module. In this case, installing the npm module is not enough, because it doesn't include the required type definitions. We can solve this by installing the npm module which contains the missing type definitions:
npm install react --save npm install @types/react --save-dev
The TypeScript team has developed an automated process that publishes all the available open source type definitions under one unique organization on the npm public registry. The organization is named @types, and the ...
