As part of learning web application development platform Angular, I’m trying to get a grip on a software library called RxJS. It is a part of Angular framework for purposes related to asynchronous data processing but I don’t understand it enough to recognize when it might be the right tool for a job. RxJS official documentation was seriously lacking in beginner-approachable information. But if it is important enough to be a part of Angular, I assumed it would have its fans online. I looked around to see if anyone has published a tutorial and the first example I found was “Learn RxJS” by Brian Troncone.
After reading those pages, I clicked around the site hoping for more content of similar quality. Unfortunately, I think those two pages were the free trial teaser for the author’s paid RxJS instruction courses. I don’t begrudge the author for making a living from their knowledge, but I’m yet not at a point where it makes sense for me to spend $129 on it.