FormBuilder is used as syntactic sugar for easily creating instances of a FormControl, FormGroup, or FormArray. This is helpful to reduce the amount of boilerplate needed to build complex reactive forms. It is available as an injectable helper class of the @angular/forms package.
For example, the user profile component creation becomes easier as shown here:
1 2 3 4 5 6 7 8 9 10 11 12 13 | export class UserProfileComponent { profileForm = this.formBuilder.group({ firstName: [''], lastName: [''], address: this.formBuilder.group({ street: [''], city: [''], state: [''], zip: [''] }), }); constructor(private formBuilder: FormBuilder) { } } |
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