Components are such a large part of Ember apps, and they can do everything from displaying a post to loading data for a form. But the freedom that comes with this flexibility can also make it difficult to know if a particular approach will make your components a dream to work with, or leave you tearing your hair out. When creating a new component, you might ask yourself what data needs to be exposed, what kind of side effects it will have, or whether you need it to be generic and reusable or for …