Gain insights into building reactive websites with RxJS. Delve into mastering observables and managing events efficiently to create fast, responsive applications while reducing bugs.

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The list of requirements for frontend work keeps increasing. Websites that load quickly on shaky connections, render perfectly on mobile devices, and respond with lightning speed to user input are expected. All of these tasks require dealing with a high number of events from disparate sources, be it your Customer Relationship Management (CRM), late-breaking news, or just a chat room.

Observables is a new way of thinking about managing these events, even when they may occur sometime in the future.

In this course, you’ll learn how to delegate both the calls and control flow to RxJS, allowing you to focus on the rest of your application.

RxJS compartmentalizes eventing flows, encapsulating each action in a single function, providing many helper operators that keep an internal state, allowing you to outsource your state worries to the library.

By the end of this course, you will be able to build bigger, faster, and less-buggy applications for your users.

Build Reactive Websites with RxJS: Master Observables and Wrangle



By now you've not only picked up some observable creation knowledge but also added a whole host of operators to your skillset.  In this chapter, you learned:

- How to flatten data with `mergeMap`.
- How to filter out unwanted data with (unsurprisingly) `filter`.
- How to collect an entire observable worth of data with `reduce`.
- How to debug in-flight data with `tap`.

You also tackled the concept of inner observables.  By now you should start to see how observables can plug into common problems you face on the frontend.  There's still plenty to go (two chapters would make a short course), but you've plowed through the basics. 

 In the next chapter, you finally face the big dragon of asynchronicity.  The challenge ramps up, but you can handle it.  See you there!
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Let's take a quick look at what we learned in this chapter.

What We Learned

Course Introduction

Creating Observables

Manipulating Streams

Managing Asynchronous Events

Advanced Async

Multiplexing Observables

Using HTTP in Angular

Building Reactive Forms in Angular

Advanced Angular

Reactive Game Development

What We Learned