How to use modules in Angular 2?

Question

Angular

I just can’t understand why you need to use modules, if you can get by with only components (in addition to the root module). Please provide an example of their use.

Answer 1

Situation. You download a third-party lib for Angular, which has about 50-100 components (any set of ready-made ui controls), and you want to use all these components. Will you manually write them in the declarations of your root module? Or is it easier to just write one module in imports?