CODEWITHSUNDEEP
functional-programmingelm
Lordie
Lordie

Reputation: 178

Apply one argument to multiple functions

Is there a way to apply one argument to multiple functions in elm?

in the example, x would be applied to each isDiv function

isDiv : Int -> Int -> Bool
isDiv x y =
    modBy x y == 0


isLeapYear : Int -> Bool
isLeapYear x =
    x (isDiv 4 && isDiv 100 || isDiv 400)

Ended up doing this

isLeapYear : Int -> Bool
isLeapYear x =
    let
        isDiv y =
            modBy y x == 0
    in
    isDiv 4 && not (isDiv 100) || isDiv 400

Upvotes: 4

Views: 112

Answers (1)

Chad Gilbert
Chad Gilbert

Reputation: 36375

You could write a helper function inside isLeapYear like this:

isLeapYear : Int -> Bool
isLeapYear x =
    let isDivX n = isDiv x n
    in isDivX 4 && isDivX 100 || isDivX 400

Upvotes: 4

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