Although, I'm familiar with the concepts; I posit that the examples in the post are too general. Due to the generality of the examples, the concepts may be dif

Although, I'm familiar with the concepts; I posit that the examples in the post are too general. Due to the generality of the examples, the concepts may be difficult for beginners to pick up, or to see any benefit. I suggest the (free) book Scala with Cats as an alternative.