Mastering TypeScript 3 - Third Edition

Using definition files

There are a number of ways to include definition files within your project. When TypeScript was initially released, the only way to include definition files was to download them manually from DefinitelyTyped, store them into a directory within your project, and then reference them manually. As the popularity of TypeScript started increasing, so did the number of definition files, and thus finding and installing the correct files became more difficult. Several tools then started to emerge to aid with this process. The first of these was a Node-based command-line tool named tsd, which allowed for querying the DefinitelyTyped database, and installing the relevant definition files. tsd was deprecated in early 2016, in favour ...