Course Introduction

Project Architecture

Introduction

The Concept of Signals

The importance of Signals over Change Detection and Zone.js

How to Create a Signal

Reactive Primitives in Signals

 Getting Started with Signals

Module 3 Introduction

Fetching Data from the Server using RxJS

Using the Interoperability API to convert Http requests to Signals

Signals and Http Requests

Module 4 Introduction

Adding Items to the Shopping Cart

Integrate Counter Functionality and Remove Items from Cart

Implement the Checkout Page

Exercise

Error Handling in Signals

Sharing Data Between Different Components with Signals

Wrapping up the Course

Course Wrap Up

### How The Course Works:

- The "Build a Modern Web Application using Angular Signals" course is a comprehensive online program spanning five modules. Discover how to effectively utilize Signals to manage the entire state of an Angular application, integrate the newly built-in control flows, employ deferrable views, navigate components using lazy loaded routes, and implement Standalone components.
- Remote Access: Take advantage of the course from any location, allowing you the flexibility to engage with the materials at your convenience.
- Self-Paced Learning: Tailor your learning experience to your schedule, enabling you to progress through the course content at your own pace.
- Community Engagement: Collaborate and learn alongside a diverse community of fellow students, fostering an environment of shared knowledge and support.
- Structured Learning: Experience a well-organized curriculum designed to provide a cohesive and comprehensive understanding of Angular Signals in a logical progression.

### Understanding the Challenges

Learning Angular 17 can present various hurdles and frustrations for those new to the technology. As individuals navigate their journey into this advanced framework, they commonly encounter several challenges:

- Complexity Barrier: The intricate architecture and extensive feature set of Angular 17 can overwhelm newcomers, posing a significant learning curve.
- State Management Complexity: Managing the state of an Angular application efficiently, especially with the nuances of Signals, can prove challenging for learners.
- Integration Puzzles: Integrating and harnessing newly built-in control flows, deferrable views, Standalone components, and lazy loaded routes can be intricate and perplexing.
- Navigational Complexity: Understanding the intricacies of lazy loaded routes and effective navigation between components can pose obstacles to a smooth learning experience.

Navigating through these complexities without guidance can hinder the progress of aspiring developers aiming to master Angular 17.


### Advantages of Learning Angular 17 in 2023

- Enhanced Performance: In 2023, Angular 17 offers optimized performance enhancements, enabling you to craft high-performing web applications capable of meeting modern user expectations.
- Cutting-Edge Features: Stay ahead in the web development landscape by mastering the latest built-in control flows, deferrable views, and other advanced functionalities unique to Angular 17.
- Industry Relevance: With Angular continuing to be a sought-after framework in the industry, mastering Angular 17 ensures you remain competitive and relevant in the job market.
- Improved Developer Experience: Angular 17 introduces refinements and enhancements that streamline the development process, providing a more efficient and enjoyable experience for developers.
- Scalability and Maintainability: Learning Angular 17 equips you with the knowledge to build scalable and maintainable applications, crucial factors in modern software development.

### Why Learn Angular 17 in 2023

Angular 17 stands at the forefront of web development frameworks in the current year, offering you several compelling reasons to dive into its intricacies:
Embrace the evolution of web development by mastering Angular 17 in 2023. This advanced version presents you with enhanced performance capabilities, cutting-edge features, and improved developer experiences. Remaining proficient in Angular ensures your relevance in a competitive industry, equipping you with the skills necessary to build scalable, high-performing applications that meet the demands of modern users.

### Course Content Overview

Course Overview:
Total Modules: **5**
Total Lessons: **12**
Total Video Runtime: **1 hour, 41 minutes**

### Summary:
This course is structured into five comprehensive modules, guiding you through the intricacies of Angular 17 Signals. From laying the groundwork with introductory concepts to diving deep into handling HTTP requests, sharing data between components, and culminating with a thorough review in the conclusion module, each section builds upon the last, empowering you to master Angular 17 Signals effectively.

Learn how to surgically manage state and optimize UI rendering with Angular Signals. This course introduces students to the world of Angular Signals, from reactive primitives to seamless interoperability between observables and signals. By the end of this course, you'll have learned how to build a highly performant, lightweight Angular application that features deferrable views, lazy loaded routes, and a PayPal-powered checkout flow. Additionally, you'll have learned the techniques needed to modernize older Angular applications so that they're able to fully leverage the power of Angular Signals.

Demystifying Reactivity with Angular Signals

Fetch data from a REST API making use of Signals.

Make use signals to add functionalities to the shopping cart

Checkout selected items from the cart using the available Signal APIs

How to manage state in an Angular application by making use of Signals

The importance of using Signals to enhance change detection

How to integrate a robust lazy loading approach, by making use of deferrable views and lazy loaded routes

Difference between using RxJS and Signals when working with data and asynchronous operations

How to structure an Angular application using Standalone components

How to work with the newly built-in control flows

Understanding the Architecture of Modern Angular Applications with Signals

This article discusses the architecture of modern Angular applications, focusing on the configuration of an Angular application that adopts a modular and tree-shakeable approach through standalone components and lazy-loaded routes. We will also delve into the newly introduced deferrable views in Angular 17 and the latest built-in control flows. In addition, we will briefly touch upon the backend architecture that supports the application, built with Node.js, Express, and MongoDB.

The backend architecture, containing the REST APIs, is created using Node.js, Express, and MongoDB. To get started with the backend, download the project available in this lesson and run 

 at the root of the project. This will install all the necessary dependencies.

Next, navigate to the MongoDB Atlas website, create a project, and obtain the MongoDB URL. Paste this URL inside your 

 file. To populate the database with static data, create a 

 file, which is already included in the project, and run 

 in the terminal. This will push all the data straight into the database, making it accessible from the frontend using a REST API.

Here is a demo of the backend application:

The architecture of the Angular application features standalone components, functional and distributed routes, deferrable views, and the newly built-in control flows.

Here is a demo of the frontend application:

Standalone components, introduced as an experimental feature in Angular 14 and fully integrated in Angular 15, help reduce the bundle size of the web application by removing unnecessary imports and enhancing modularization. To identify a standalone component, look inside the 

Routing is a major feature of a single web application. Using standalone components, we can easily configure lazy-loaded routes in Angular applications, leading to a robust codebase. Lazy-loaded routes use functional syntax, which is cleaner and easier to understand.

Deferrable views, also known as "defer" blocks, were introduced in Angular 17. They reduce the initial bundle size of an Angular application, resulting in faster application load times. Using the 

 defer flow, we can show a loading spinner to the user while data is being fetched from the backend.

Finally, we utilize the newly introduced built-in control flows from Angular 17.0 to conditionally render content on the templates. We now have the 

 block to toggle the contents of the template, and the 

 block for rendering items from an array.

In this detailed guide, we covered the architecture of a modern Angular application, from backend structure to frontend features like standalone components, functional and distributed routes, deferrable views, and built-in control flows. Remember, these powerful features require staying updated with the latest versions of Angular.

In the next lesson, we will delve into the usage and intricacies of Signals in the Angular application. This will help further simplify and enhance the code, leading to a more efficient and user-friendly app.

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# Understanding the Architecture of Modern Angular Applications with Signals

## Introduction

This article discusses the architecture of modern Angular applications, focusing on the configuration of an Angular application that adopts a modular and tree-shakeable approach through standalone components and lazy-loaded routes. We will also delve into the newly introduced deferrable views in Angular 17 and the latest built-in control flows. In addition, we will briefly touch upon the backend architecture that supports the application, built with Node.js, Express, and MongoDB.

## Backend Architecture

The backend architecture, containing the REST APIs, is created using Node.js, Express, and MongoDB. To get started with the backend, download the project available in this lesson and run `npm install` at the root of the project. This will install all the necessary dependencies.

Next, navigate to the MongoDB Atlas website, create a project, and obtain the MongoDB URL. Paste this URL inside your `.env` file. To populate the database with static data, create a `seed.js` file, which is already included in the project, and run `node seed.js` in the terminal. This will push all the data straight into the database, making it accessible from the frontend using a REST API.

Here is a demo of the backend application:

<ReplitEmbed src="https://replit.com/@newlineauthors/angular-app-backend-server" />

## Frontend Architecture

The architecture of the Angular application features standalone components, functional and distributed routes, deferrable views, and the newly built-in control flows.

Here is a demo of the frontend application:

<ReplitEmbed src="https://replit.com/@newlineauthors/angularappmodule4" />

### Standalone Components

Standalone components, introduced as an experimental feature in Angular 14 and fully integrated in Angular 15, help reduce the bundle size of the web application by removing unnecessary imports and enhancing modularization. To identify a standalone component, look inside the `@Component` decorator in the `.ts` file for a key with `standalone` set as `true`.

### Functional and Distributed Routes

Routing is a major feature of a single web application. Using standalone components, we can easily configure lazy-loaded routes in Angular applications, leading to a robust codebase. Lazy-loaded routes use functional syntax, which is cleaner and easier to understand.

### Deferrable Views

Deferrable views, also known as "defer" blocks, were introduced in Angular 17. They reduce the initial bundle size of an Angular application, resulting in faster application load times. Using the `@loading` defer flow, we can show a loading spinner to the user while data is being fetched from the backend.

### Built-in Control Flows

Finally, we utilize the newly introduced built-in control flows from Angular 17.0 to conditionally render content on the templates. We now have the `@if` block and `@else` block to toggle the contents of the template, and the `@for` block for rendering items from an array.

## Conclusion

In this detailed guide, we covered the architecture of a modern Angular application, from backend structure to frontend features like standalone components, functional and distributed routes, deferrable views, and built-in control flows. Remember, these powerful features require staying updated with the latest versions of Angular.

In the next lesson, we will delve into the usage and intricacies of Signals in the Angular application. This will help further simplify and enhance the code, leading to a more efficient and user-friendly app.


Project Architecture Build a Modern Angular Application with Signals

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Demystifying Reactivity with Angular Signals

WELCOMEIntroduction

Introduction:

Start Here

Module 1: Introduction

Lesson 1: (4:44)

Course Introduction

Lesson 2: (8:57)

Project Architecture

Module 2: Getting Started with Signals

Lesson 1: (8:22)

The Concept of Signals

Lesson 2: (2:13)

The importance of Signals over Change Detection and Zone.js

Lesson 3: (3:32)

How to Create a Signal

Lesson 4: (12:35)

Reactive Primitives in Signals

Module 3: Signals and Http Requests

Lesson 1: (0:42)

Module 3 Introduction

Lesson 2: (9:43)

Fetching Data from the Server using RxJS

Lesson 3: (6:09)

Using the Interoperability API to convert Http requests to Signals

Module 4: Sharing Data Between Different Components with Signals

Lesson 1: (0:40)

Module 4 Introduction

Lesson 2: (7:10)

Adding Items to the Shopping Cart

Lesson 3: (14:50)

Integrate Counter Functionality and Remove Items from Cart

Lesson 4: (15:42)

Implement the Checkout Page

Lesson 5: (1:52)

Exercise

Lesson 6: (4:34)

Error Handling in Signals

Module 5: Course Wrap Up

Lesson 1: (2:14)

Wrapping up the Course

Project Architecture