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Angular Forms: Template-driven vs Reactive Forms

Angular Forms: Template-driven vs Reactive Forms

Handling user input is a key part of any frontend application, and Angular provides two powerful approaches to build and manage forms: Template-driven forms and Reactive forms.

Understanding their differences will help you choose the right approach for your project.


Template-driven Forms

Template-driven forms rely heavily on Angular’s directives (ngModel, ngForm) and template syntax.

Example

<form #f="ngForm" (ngSubmit)="onSubmit(f)"> <input type="email" name="email" ngModel required email placeholder="Enter your email" /> <button type="submit" [disabled]="f.invalid">Submit</button> </form> 
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Key Features

  • ✅ Easy to set up, minimal code in the component.
  • ✅ Great for simple forms with just a few fields.
  • ❌ Harder to test and scale for large or dynamic forms.
  • ❌ Logic is split between template and component, which can get messy.

Reactive Forms

Reactive forms are model-driven, meaning the form structure is defined in the component class and linked to the template.

Example

import { Component } from '@angular/core'; import { FormBuilder, Validators } from '@angular/forms'; @Component({ selector: 'app-login', templateUrl: './login.component.html' }) export class LoginComponent { readonly #fb = inject(FormBuilder); form = this.#fb.group({ email: ['', [Validators.required, Validators.email]], password: ['', Validators.required] }); onSubmit() { console.log(this.form.value); } } 
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<form [formGroup]="form" (ngSubmit)="onSubmit()"> <input type="email" formControlName="email" placeholder="Enter your email" /> <input type="password" formControlName="password" placeholder="Enter your password" /> <button type="submit" [disabled]="form.invalid">Login</button> </form> 
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Key Features

  • ✅ Ideal for complex forms (nested groups, arrays of controls).
  • ✅ Better testability and maintainability.
  • ✅ Validation logic stays in the component (clean separation of concerns).
  • ❌ Requires more boilerplate code to get started.

When to Use Which?

Criteria Template-driven Forms Reactive Forms
Learning curve Low Moderate
Setup complexity Simple More verbose
Best for Small forms Large/complex forms
Validation In template In component
Testability Harder Easier
Dynamic form generation Limited Excellent

Hybrid Approach

You don’t have to choose one exclusively!

Many Angular apps use template-driven forms for quick/simple inputs and reactive forms for advanced sections.


Conclusion

  • Use Template-driven forms for quick, simple cases where you just need a couple of fields.
  • Use Reactive forms when you need scalability, dynamic behavior, and strong validation.

👉 The right choice depends on your form complexity and your team’s workflow.


💡 Pro Tip: Start small with template-driven forms if you’re new to Angular, then move to reactive forms for real-world applications.

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