VietMX Staff asked 3 years ago
TypeScript is mainly about adding types to JavaScript. When you use external libraries like jQuery or moment.js, there are no information of the types in that code. So in order to use it with TypeScript, you also have to get files that describe the types of that code. These are the type declaration files, most often with the file extension name .d.ts. Fortunately people have written those kinds of type declaration files for most common javascript libraries out there.
Typings was just a tool to install those files. It is now best practice to just use npm.
