haskell Archives - Page 2 of 3

It seems that Template Haskell is often viewed by the Haskell community as an unfortunate convenience. It’s hard to put into words exactly ...

I want to study FRP in Haskell, but it’s a bit difficult to decide on a library to use. Many seem to be ...

I came across the following definition as I try to learn Haskell using a real project to drive it. I don’t understand what ...

The ‘algebraic’ expression for algebraic data types looks very suggestive to someone with a background in mathematics. Let me try to explain what ...

What does Weak Head Normal Form (WHNF) mean? What does Head Normal form (HNF) and Normal Form (NF) mean? Real World Haskell states: ...

Here’s the scenario: I’ve written some code with a type signature and GHC complains could not deduce x ~ y for some x ...

As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, ...

I’m beginning to understand how the forall keyword is used in so-called “existential types” like this: data ShowBox = forall s. Show s ...

From the docs for GHC 7.6:...

In my humble opinion the answers to the famous question “What is a monad?”, especially the most voted ones, try to explain what ...