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@angular/forms

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@angular/forms

Angular - directives and services for creating forms


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2
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Package description

What is @angular/forms?

The @angular/forms package is a part of the Angular framework that provides tools for creating and managing forms in Angular applications. It offers two approaches: Reactive Forms and Template-driven Forms, which allow developers to handle user input and form validation in a robust and scalable way.

What are @angular/forms's main functionalities?

Reactive Forms

Reactive Forms provide a model-driven approach to handling form inputs whose values change over time. This feature allows for more flexible, scalable, and testable forms.

import { ReactiveFormsModule } from '@angular/forms';

@NgModule({
  imports: [
    // other imports ...
    ReactiveFormsModule
  ],
})
export class AppModule { }

Template-driven Forms

Template-driven Forms are useful for adding simple forms to your app with minimal setup. They are less flexible than Reactive Forms but can be easier to use for basic scenarios.

import { FormsModule } from '@angular/forms';

@NgModule({
  imports: [
    // other imports ...
    FormsModule
  ],
})
export class AppModule { }

Form Validation

The package provides built-in validators as well as the ability to create custom validators, making it easy to implement complex validation logic for form fields.

import { FormControl } from '@angular/forms';

let email = new FormControl('', [Validators.required, Validators.email]);

Form Groups

Form Groups are used to group together multiple form controls into one object, allowing for easier management of form data and validation.

import { FormGroup, FormControl } from '@angular/forms';

let userForm = new FormGroup({
  firstName: new FormControl(),
  lastName: new FormControl(),
  age: new FormControl()
});

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Readme

Source

Angular

The sources for this package are in the main Angular repo. Please file issues and pull requests against that repo.

Usage information and reference details can be found in Angular documentation.

License: MIT

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Package last updated on 24 Jul 2024

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