Developed by GitHub, the highly customization environment and ease of installation of new packages has turned Atom into the IDE of choice for a lot of people. 

In order to optimize your experience with TypeScript when coding Angular apps, you need to install the Atom TypeScript package. You can install via the APM CLI or just use the built-in package installer. The functionalities included are pretty much the same as we have in Sublime after installing the Microsoft package: automatic code hints, static type checking, code introspection, or automatic build upon save to name a few. On top of that, this package also includes a convenient built-in tsconfig.json generator.