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zarinfam/gist.scala

Created August 2, 2019 13:37
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gist.scala
def echoConcat[F[_]: Monad](s1: F[String], s2: F[String]): F[String] = for {
x <- s1
y <- s2
} yield s"echo $x $y"
echoConcat(Option("Hello"), Option("World!"))
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