Learn About Reactive Forms In Angular

In Angular, the reactive forms are use to create the forms in which the code and logic resides in the component class. Unlike Template-driven forms where more focus is on HTML templates, we focus on component for logics. We can perform Two way binding in Template driven forms but there is no two way binding in Reactive forms. Angular provides the methods to update the values from the component class.

Reactive forms are used on complex cases, like dynamic forms element, dynamic validations etc.

Let us create a simple application that utilizes Reactive forms.

Create a TestApp project using Angular CLI.

Create a test component which will contain the forms and related field:

Open test.component.html and add the below contents:

Open app.module.ts and edit with the below contents,

Basically we have imported ReactiveFormsModule and added it to imports array.

ReactiveFormsModule comes with a lot of classes and directives that are necessary to create the Reactive Forms.