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New posts in haskell

Why does `let foo = (fmap . const)` fail with "No instance for (Functor f0) arising from a use of `fmap'"?

haskell type-inference

Bicategories in Haskell

Too many variables to run GHCJS program with Node

xmonad - switching workspaces with mouse buttons 6 and 7

haskell xmonad

how to get "leftover arguments" in optparse-applicative?

Typeclasses in Haskell v. Scala

scala haskell typeclass

How does (co)recursive definition work in Haskell?

efficiently reading a large file into a Map

Using record update syntax with constrained GADT records

haskell record typeclass gadt

trace can give 'inversion' of processing in folds

haskell

What's the difference between `traceIO` and `hPutStrLn stderr`?

debugging haskell

Modular equations in Haskell

Haskell sets (0/0) as qnan

Does Backwards admit a Monad instance?

haskell monads

Two functions compile with type annotations. Remove one annotation - doesn't compile. Remove two - compiles again. Why?

haskell types type-systems

More Descriptive Error Messages From GHC

What GHC optimization is responsible for duplicating case expressions?

haskell optimization ghc

Analog of free monads for Profunctors

How to force GHC to evaluate static expression only once

haskell optimization

How to deal with incomplete JSON/Record types (IE missing required fields which I'll later fill in)?

haskell yesod aeson