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djspiewak/flatMap2.scala

Created July 5, 2019 18:06
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flatMap2.scala
def flatMap2[F[_]: Monad, A, B, C](fa: F[A], fb: F[B])(f: (A, B) => F[C]): F[C] =
fa.flatMap(a => fb.flatMap(b => f(a, b)))
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