Created
February 8, 2020 22:22
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| List(("A", 1), ("B", 2)).map(second) | |
| def second[A, B](a: (A, B)) = (a._2, a._1) | |
| def second2[A, B](a: (A, B)) = a match { | |
| case (x, y) => (y, x) | |
| } | |
| def second3[A, B]: (A, B) => (B, A) = { case(a, b) => (b, a) } | |
| def second4[A, B]: (A, B) => (B, A) = { case(a, b) => b -> a } |
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