README.md

Module 9 - Reactive Forms

Projects:

fun-with-forms	Introduction to the angular reactive forms feature

Introduction to Reactive Forms

• We have seen how to start using angular reactive forms by incorporating ReactiveFormsModule
• We have constructed instances of FormControl to manage specific fields
• We have connected the input elements to the managing FormControl using the [FormControl] directive
• We have grouped the form controls into a single FormGroup and used its method and properties to collectively manage all the form controls together
• We have used the css classes ng-valid, ng-invalid, ng-touched, ng-dirty to highlight invalid fields.
• We have used the valid and invalid properties of the form group to control the ability to submit the data
• We have used the .value property to get the value of a form control, or a complete object.
• We have used the .errors property to present error information to the user
• We have seen how to create nested objects using a nested FormGroup
• We have seen how to create custom validators and custom async validators