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Gain insights into designing scalable Angular applications. Learn about components, directives, routing, RXJS, forms, and Firebase authentication to develop rich, interactive web solutions.

Angular Designing and Architecting Web Applications.png

angular-starter-v5.tar.gz

Angular

Angular Install Dependencies

Angular with Relaunch

This course will teach you step-by-step how to design and architect large Angular applications. 

You’ll start with the basics: components, pipes, and directives. These are the building blocks of any Angular application, so you will get plenty of hands-on practice with this material. Next, you’ll ramp things up by stepping into modules, routing, and RXJS, where you’ll learn how to declaratively manage data and dive deep into observables.

In the latter half of the course, you’ll cover reactive and template forms (crucial for handling user data), as well as custom validators and setting up authentication with Firebase.

By the end of this course, you'll be able to design large, scalable applications, be able to develop rich interactive components, and you’ll really understand how Angular works under the hood.

Angular: Designing and Architecting Web Applications

We're going to learn about one more feature before we wrap things up with reactive forms. Sometimes it may be necessary to reset a form. There's a function available on the form group called `reset()`. As you would imagine, this will reset every input in the form. 

Let's update the `app.component.html` template file by including a button that calls this method when clicked.

```html
<button class="btn btn-warning btn-lg btn-block" type="button" (click)="ccForm.reset()">
  Reset
</button>
```

We're listening for the `click` event on the button. If triggered, we'll call the `ccForm.reset()` function. 

One thing to note is that this is not a true reset. The `reset()` method will set all form control values to `null`. It will not use the default value you pass into the first argument. For example, let's say the form control for the name input has a default value of `John`.

```typescript
ccForm = new FormGroup({
  name: new FormControl('John', [
    Validators.required,
    Validators.minLength(3)
  ])
});
```

The `reset()` method will not set the input back to `John`. It will be set to `null`. This is important to understand in case you ever wonder why the input is not resetting the input to the desired value.

Below is the updated code. If you press the reset button, then the input fields should empty out regardless of their values. If you look at the log below the form, you'll see that the form controls have been set to `null`.

We're going to learn about one more feature before we wrap things up with reactive forms. Sometimes it may be necessary to reset a form. There's a function available on the form group called `reset()`. As you would imagine, this will reset every input in the form. 

Let's update the `app.component.html` template file by including a button that calls this method when clicked.

```html
<button type="button" (click)="ccForm.reset()">
  Reset
</button>
```

We're listening for the `click` event on the button. If triggered, we'll call the `ccForm.reset()` function. 

One thing to note is that this is not a true reset. The `reset()` method will set all form control values to `null`. It will not use the default value you pass into the first argument. For example, let's say the form control for the name input has a default value of `John`.

```typescript
ccForm = new FormGroup({
  name: new FormControl('John', [
    Validators.required,
    Validators.minLength(3)
  ])
});
```

The `reset()` method will not set the input back to `John`. It will be set to `null`. This is important to understand in case you ever wonder why the input is not resetting the input to the desired value.

Below is the updated code. If you press the reset button, then the input fields should empty out regardless of their values. If you look at the log below the form, you'll see that the form controls have been set to `null`.

In this lesson, we'll learn how to quickly reset forms.

First Steps

Our First Project

Component Basics

Pipes

Directives

Modules

Routing

Advanced Components

Services

RxJS

Reactive Forms

Template Forms

Custom Validators

Authentication

Conclusion

Resetting the Form