To get the most out of this book

You should be experienced with JavaScript and web concepts in general. It would be good to have experience with frameworks and libraries such as Angular and NestJS on the server side. It would be an advantage to have strong fundamentals in the asynchronous programming area, functional programming, and reactive programming basics. You will get the most out of this book if you are already familiar with core RxJS concepts such as Observer and Iterator patterns, Observables, Subscriptions, operators, Subjects, and Schedulers.

In Chapter 10, you will need to run a local Kafka server for one of the recipes. You can find detailed information on this in the Kafka documentation https://kafka.apache.org/quickstart.

If you are using the digital version of this book, we advise you to type the code yourself or access the code from the book’s GitHub repository (a link is available in the next section). Doing so will help you avoid any potential errors related to the copying and pasting of code.

Download the example code files

You can download the example code files for this book from GitHub at https://github.com/PacktPublishing/RxJS-Cookbook-for-Reactive-Programming/tree/main. If there’s an update to the code, it will be updated in the GitHub repository.

We also have other code bundles from our rich catalog of books and videos available at https://github.com/PacktPublishing/. Check them out!

Conventions used

There are a number of text conventions used throughout this book.

Code in text: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and X/Twitter handles. Here is an example: “Notice one more important change from the previous example with distinctUntilChange.”

A block of code is set as follows:

combineLatest({
    searchName: searchNameInputValue$,  
    searchIngredient: searchIngredientInputValue$
}

Any command-line input or output is written as follows:

npm run build && http-server ${build-location} -c-1 –o

Bold: Indicates a new term, an important word, or words that you see onscreen. For instance, words in menus or dialog boxes appear in bold. Here is an example: “RxJS marble diagrams are a powerful tool for visualizing and understanding the behavior of Observables and operators in reactive programming.”