Reactive Forms: The Professional Way to Build Forms

Reactive Forms give you full control in TypeScript and are easier to scale and test.

Step 1: Import ReactiveFormsModule

import { Component } from '@angular/core';
import { ReactiveFormsModule, FormControl, FormGroup, Validators } from '@angular/forms';

@Component({
  selector: 'app-signup',
  standalone: true,
  imports: [ReactiveFormsModule],
  templateUrl: './signup.component.html',
})
export class SignupComponent {
  form = new FormGroup({
    name: new FormControl('', { nonNullable: true, validators: [Validators.required] }),
    email: new FormControl('', { nonNullable: true, validators: [Validators.required, Validators.email] }),
  });

  submit() {
    if (this.form.invalid) return;
    console.log('Form value:', this.form.value);
  }
}

Step 2: Template

<form [formGroup]="form" (ngSubmit)="submit()">
  <label>Name</label>
  <input formControlName="name" />
  <div *ngIf="form.controls.name.touched && form.controls.name.invalid">
    Name is required.
  </div>

  <label>Email</label>
  <input formControlName="email" />
  <div *ngIf="form.controls.email.touched && form.controls.email.invalid">
    Enter a valid email.
  </div>

  <button type="submit" [disabled]="form.invalid">Create Account</button>
</form>

Why teams love Reactive Forms

• validation rules live in TypeScript
• easier to reuse patterns across forms
• better for complex and dynamic form fields

Next: HTTP POST, sending form data to a backend.