Forms

An application without user input is just a page. Capturing input from the user is the cornerstone of any application. In many cases, this means dealing with forms and all of their complexities.

Angular 2 is much more flexible than Angular 1.x for handling forms — we are no longer restricted to relying solely on ngModel. Instead, we are given degrees of simplicity and power, depending on the form's purpose.

• Template-Driven Forms places most of the form handling logic within that form's template
• Reactive Forms places form handling logic within a component's class properties and provides interaction through observables

原文: https://angular-2-training-book.rangle.io/handout/forms/