I'm trying to learn haskell after years of OOP. I'm reading Happy Haskell. It provides this code:I understand how plus and plus' work (they're the same, different syntax). But increment, I don't get.
When writing a function that can accept currying, you can write it as a single-argument function that returns a function. For example,
I checked a post before and seems understand. I know is the curry form ofBut as the type signature gets longer than 2 arrows, I feel confused again.
I was reading the-neophytes-guide-to-scala-part-10 where I came across following code.I understood the first line where type alias EmailFilter is created for a function which takes email return boolean. But I don't understand the second line where we take email and number as input and returns boolean by checking size. Please...
What is the difference between both these ways of lambda creation? Why doesn't the first one compile?