> - map cannot produce a Dictionary, so Dictionary manipulations usually require a loop Assuming you meaning mapping over a list, some sort of fold function co

> - map cannot produce a Dictionary, so Dictionary manipulations usually require a loop Assuming you meaning mapping over a list, some sort of fold function could produce a dictionary, in some languages, such as Elm. [1] [1] https://package.elm-lang.org/packages/elm/core/latest/List#foldl https://package.elm-lang.org/packages/elm/core/latest/List#f...