Email Validation in Angular 7

Are you using Angular 7 and looking to validate email inputs in your forms?
Look no further! In this article, we will explore the EmailValidator class and
its implementation in Angular 7.

What is Email Validation?

Email validation is the process of checking if an email address is valid and
formatted correctly. This is important in form submissions and user sign-ups
to ensure that the email address entered is accurate and can be used for
communication.

Email Validation in Angular 7

Angular 7 provides a built-in EmailValidator class that can be used to
validate email inputs in your forms. This class implements the ValidatorFn
interface, which requires the implementation of a validate method.

The validate method takes a control parameter, which is of type
AbstractControl. This parameter represents the form control being validated.
The method returns a ValidationErrors object if the validation fails, or null
if the validation succeeds.

The EmailValidator class can be used in conjunction with other validators to
create a custom validation function for your form controls.

Implementing Email Validation in Angular 7

To implement email validation in Angular 7, first import the EmailValidator
class from the @angular/forms module:

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

Next, create a custom validation function that uses the EmailValidator class:

emailValidator(control: AbstractControl): ValidationErrors | null {  
return EmailValidator.validate(control);  
}

This function can then be used in your form controls:

this.myForm = this.fb.group({  
email: ['', [Validators.required, this.emailValidator]]  
});

Here, we are using the emailValidator function as one of the validators for
the email form control.

Commonly Asked Questions

1. What is the purpose of email validation?

Email validation ensures that the email address entered is accurate and can be
used for communication. This is important in form submissions and user sign-
ups.

2. How can I customize email validation in Angular 7?

You can customize email validation in Angular 7 by creating a custom
validation function that uses the EmailValidator class and other validators as
needed.

3. What other validators are available in Angular 7?

Other validators available in Angular 7 include required, min, max, pattern,
and more.