alt Hacker NewsThis explanation doesn't contain any practical examples either. I mean, I do know that Promises are a monad, but that's not obviously helpful. You can write plenty of async code using Promises without knowing that, and it will probably be clearer to the reader. Similarly, options are a monad, but that's unhelpful for writing code that deals with optional values.
Why is most writing about functional programming like this?
Because FP is useless so there aren't any practical examples. ...but all kidding aside, I kinda feel like an astronomer talking to an astrologer when it comes to this stuff. Like I'm scanning the night sky with my telescope while he's talking about Mars being 'in the house of Jupiter' or whatever. It's the old Abelson quote about computer science all over again.