Why Reactive Forms?

In this course we’ll learn how to build robust data-entry forms with Angular Reactive Forms. Reactive forms are a really powerful, flexible option in creating forms.

A simpler alternative would be the template-driven form. Now what makes reactive forms different?

1. Most work is done in the component, which means it’s easier for us to reuse code.
   
2. The data model is immutable and kept pure.
   
3. We get synchronous access to data and form models, which provides us more predictability.
   
4. Access to low-level APIs gives us more control. Scalability is improved due to access to the low-level APIs and form model.
   
5. It is easier to test reactive forms as we don’t need to interact with change detection or render the UI.
   

All in all, though reactive forms have a steeper learning curve, if you need more than a very basic form, it can be worth it to choose the explicit, model-driven approach.