Gain insights into reactive programming with RxJS 7, explore data streams, error handling, and multicasting to build a recipe app, and learn to test and optimize reactive applications.

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The reactive programming paradigm is designed to make working with asynchronous events and data streams convenient. 

This course teaches you about the reactive programming paradigm and when to choose it over others. You’ll learn to use new RxJS 7 features to create a recipe book web application that lets users browse and share recipes. In this context, you’ll learn about data streams, error handling, and how to combine streams and transform one data stream into another. You’ll develop an understanding of multicasting and caching streams, how to share data between components, perform bulk operations such as file uploads, and perform real-time updates. Finally, you’ll learn how to test a reactive application. To assess your knowledge, there’s a project, coding challenges, and assessments.

After this course, you’ll be able to determine the utility of the reactive paradigm for any application and have mastery over new RxJS 7 features to create robust reactive applications.

Reactive Programming with Angular and RxJS 7

To increase the number of network requests


To enhance the visual design of the application

To improve initial page load times and user availability

What is the primary purpose of reducing the JavaScript bundle size in a front-end application?

What is the primary purpose of reducing the JavaScript bundle size in a front-end application?

Which tool provides a visual representation of bundle contents, helping to identify code origins and bundle sizes?

Which tool provides a visual representation of bundle contents, helping to identify code origins and bundle sizes?

What is the primary purpose of the `toPromise()` method in RxJS?

What is the primary purpose of the <code>toPromise()</code> method in RxJS?

Observables can produce no value or more than one, while promises only produce one value when resolved successfully.

Observables only produce one value when resolved successfully, while promises can produce no value or more than one.


Observables and promises are identical and have no differences.

Observables can only produce values synchronously, while promises can produce values asynchronously.

What is the key difference between observables and promises?

What is the key difference between observables and promises?

(**True or False**) Observables are essentially a thin wrapper around promises.

(True or False) Observables are essentially a thin wrapper around promises.

What will be the output of the following code?
```
const { firstValueFrom, lastValueFrom , Observable} = require('rxjs');

const source$ = new Observable((observer) => {
    observer.complete();
});

hello();
async function hello() {
    const value = await firstValueFrom(source$);
    console.log(value);
}
```

What will be the output of the following code?
<pre><code>const { firstValueFrom, lastValueFrom , Observable} = require('rxjs');

const source$ = new Observable((observer) =&gt; {
 observer.complete();
});

hello();
async function hello() {
 const value = await firstValueFrom(source$);
 console.log(value);
}
</code></pre>

Getting Started

The Power of the Reactive Paradigm

RxJS 7—The Major Features

A Walk-Through of the Application

Fetching Data as Streams

Error Handling

Combining Streams

Assessment 1

Transforming Streams

Multicasting Essentials

Caching Streams

Sharing Data between Components

Bulk Operations

Processing Real-Time Updates

Testing RxJS Observables

Assessment 2

Conclusion

Quiz: RxJS 7—The Major Features