David Fletcher questions

David Fletcher answers

• How do I flatten a NonEmpty of NonEmptys
• Infinite self-referencing list
• How to fail a nested megaparsec parser?
• Haskell - How can I divide a matrix (2-D array) into groups
• Is "associates to the right" equivalent to being left or right associative?
• expand list of lists by adding element once to every list
• Inconsistency between minimumBy and maximumBy
• How can I use a fixed-minimum-length list in a total and elegant way?
• Exponentiation using list comprehension
• Is there a straight-forward solution to receiving the element *prior* to hitting the dropWhile predicate?