This week When I started writing this article a crazy idea came to me: would it be possible to implement a relational database using only map, filter and reduce?
The answer is: It is possible, and my implementation can be found in this repository. Keep in mind that this implementation is just a creative exercise, so don't blame me for it not being a complete database.
Now let's get straight to the point: The goal of this article is to explain through examples how to use filter, map and reduce in common situations a programmer faces.
...keep reading