Test your knowledge of this chapter by answering the following questions:

•  What are the three building blocks of reactive forms?
• What are the different methods and properties of AbstractControl?
• What is the difference between pristine and touched? What are the opposites of them?
• What are the two different methods we can use to set values? What are the differences between them?
• What does the hasError method do and how can we use it?
• What is FormBuilder? How can we use it?
• How do you add validations to reactive forms?
• How do you create a custom validator in Angular?
• How do you add synchronous and asynchronous validations?
• How can you optimize your JavaScript bundle?