Reactive Forms in Angular

From the Angular cheat sheet · Forms · verified Jul 2026

Reactive Forms

Forms with FormControl and validators

typescript
// Form setup
import { FormBuilder, FormGroup, Validators } from '@angular/forms';

export class MyComponent {
  myForm: FormGroup;

  constructor(private fb: FormBuilder) {
    this.myForm = this.fb.group({
      name: ['', [Validators.required, Validators.minLength(3)]],
      email: ['', [Validators.required, Validators.email]],
      age: [null, [Validators.min(18)]]
    });
  }

  onSubmit() {
    if (this.myForm.valid) {
      console.log(this.myForm.value);
    }
  }
}
💡 Reactive forms provide more control and testability
⚡ Use FormBuilder for cleaner syntax
📌 Async validators for server-side validation
🔥 FormArray for dynamic form fields

More Angular tasks

Back to the full Angular cheat sheet