Angular 21
Download v21

Evolution of Forms

Legacy (Reactive Forms)

Requires ControlValueAccessor, manual subscriptions, boilerplate.

Value: { "username": "", "email": "" }

Valid: false

Signal Forms (v21)

Model-driven, type-safe, default signals.

Required
Invalid Email
name: 
email: 
isValid: false

// Access via FieldState
username.value(): 
email.value(): 
username.valid(): false
email.valid(): false