K. A. Buhr questions

K. A. Buhr answers

• How to make instance of Applicative a certain data type
• Empty do block yesod after creating new handler
• Composition of Data.Dynamic functions in Haskell
• In Haskell, does mutability always have to be reflected in type system?
• Type match error from just an unused qualified import
• How to download internet file locally in Haskell [closed]
• Is it possible to use one line contracts in Liquid Haskell?
• Why is a typeclass constraint added when I did not define it in my original type definition?
• Folds implementation in Haskell
• Constructing compositional self-referential lenses in Haskell