A FormArray aggregates the values of each child FormControl into an array. … For example, if one of the controls in a FormArray is invalid, the entire array becomes invalid. FormArray is one of the three fundamental building blocks used to define forms in Angular, along with FormControl and FormGroup .

What is the use of FormArray in Angular?

The FormArray is a way to Manage collection of Form controls in Angular. The controls can be FormGroup, FormControl, or another FormArray. Because it is implemented as Array, it makes it easier dynamically add controls.

What is FormControl in Angular?

In Angular, form controls are classes that can hold both the data values and the validation information of any form element. Every form input you have in a reactive form should be bound by a form control. These are the basic units that make up reactive forms.