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mocha

RxJS (Reactive Extensions for JavaScript) is a very powerful library for web development which allows you to easily write asynchronous or call-back code.

In this course, you will explore the latest version of RxJS in detail, focusing on how to apply the reactive paradigm to solve your day-to-day tasks. You will learn all the major components of this library including: subjects, operators, and how to test observables.

In the last section of this course, you will get hands-on with this library to create your own project. Throughout this project, you’ll learn about building a centralized loading indicator, how to handle DOM events, how to build a reactive local database, and more.

By the end of this course, you will have a great new skill to add to your resume, and a cool new project for your portfolio.

Building Reactive Applications with RxJS

In this lesson, you will be introduced to Marble Testing. One of the major drawbacks it overcomes is the ability to test asynchronous Observables synchronously using virtual time. The virtual time in RxJS is 'provided' via a Scheduler.

Learn how to test Observables the right way using Marble tests.

The Need for Reactive Programming

RxJS Subjects

RxJS Operators

Testing Observables

Real-World Projects in RxJS

Conclusion

Marble Tests