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pedrofurla/λ> :t +v join @((->) Int)

Created February 23, 2021 04:00
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λ> :t +v join @((->) Int)
λ> :t +v join @((->) Int)
join @((->) Int)
:: forall a. Monad ((->) Int) => (Int -> Int -> a) -> Int -> a
@pedrofurla
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λ> :set -XTypeApplications -fprint-explicit-foralls
λ> :t  +v join
join :: forall (k :: * -> *) a. Monad k => k (k a) -> k a

@pedrofurla
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For more https://ghc.gitlab.haskell.org/ghc/doc/users_guide/exts/type_applications.html

@pedrofurla
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Use case that sparked this:

λ> join (+) 5
10

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