RNFI Services Angular Developer Interview Questions and Answers

There are two types of forms in Angular: Template-driven and Reactive. Form Array is used to manage multiple form controls.

• Template-driven forms rely on directives in the template to create and manage the form controls

• Reactive forms use the FormBuilder service to create and manage the form controls programmatically

• Form Array is used to manage multiple form controls of the same type, such as a list of input fields

• Form A...read more

FormGroup is a class that tracks the value and validity state of a group of FormControl instances. Form builder is a service that provides a syntactic sugar API for creating instances of FormGroup and FormControl.

• FormGroup is used to group related form controls together.

• FormBuilder simplifies the process of creating instances of FormGroup and FormControl.

• FormGroup tracks the value and validity state of a group of FormC...read more