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jehoshua02/randomItem.elm

Last active September 30, 2016 14:10
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Here's how I would have liked to get a random number in elm
Raw
randomItem.elm
randomItem : List a -> Maybe a
randomItem xs =
case xs of
[] ->
Nothing
_ ->
let
randomInt =
Random.int 0 ((List.length xs) - 1)
i =
Random.generate identity randomInt
in
getAt i xs
@jehoshua02
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@rundis yeah ok, but I don't have a program! I am strictly working with modules, types, functions, and tests at the moment. It's all logic with no UI.

https://github.com/jehoshua02/elm-sudoku/blob/puzzle-solve-tests/src/Sudoku/Puzzle.elm#L62

Should I be forced to have a Program / UI just to get a random number? What if I was shipping a package full of useful, lower-level, non-ui, non-program functions for use by a ui/program developer and one of my dozen functions featured some randomness, as part of it's core logic?

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