ngSubmit

ngSubmit is an Angular directive that provides a convenient way to handle form submissions. It allows you to bind a method in your component to the submit event of an HTML form. When the form is submitted, either by clicking a submit button or pressing Enter in an input field, the specified method will be executed.

To use ngSubmit, you first define a method within your component class that will be called upon submission. This method typically contains the logic for validating the form data and then processing it, such as sending it to a server or updating application state. You then add the ngSubmit directive to your HTML form element, assigning your component method to it. For example, if your component method is named `onSubmit`, you would write `<form (ngSubmit)="onSubmit()">`.

The ngSubmit directive prevents the default browser form submission behavior, which would typically cause a page reload. Instead, it triggers the execution of your Angular method, allowing you to manage the submission process within your application. This is crucial for building single-page applications (SPAs) where page reloads are undesirable. You can also incorporate form validation within the method triggered by ngSubmit to ensure data integrity before processing.