> For the complete documentation index, see [llms.txt](https://bharat-tiwari.gitbook.io/our-tech-journal/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://bharat-tiwari.gitbook.io/our-tech-journal/angular-4/reactive-forms.md).

# Reactive Forms

Two options to build forms in Angular:

* Template Driven Form
* Reactive Form

## Template Driven Form

* Its the default option to build forms in Angular
* It uses Angular provided form template directives to build forms

## Reactive Form

* We create the model objects of the Form elements in the component code, thus these are also known as model-driven forms. There is very minimal form template in the HTML
* advantages:
  * js object driven form fields and their validations
  * dynamically validate and generate the custom validation messages for the form fields
  * easily unit testable

## Read in Details

<https://medium.com/aviabird/complete-angular2-guide-reactive-forms-in-depth-part-1-21a8e2428904>