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Scala Tuple

Scala Tuple​

  • 可存取 不同型態 的一種物件 Wrapper, immutable
  • Scala Tuple 建構方式
    • var-args
    • nested tuple2, -> 窄箭號
    • destruction way: 解構並給予變數名稱
    //#1 var-args
    val items = (1, "a", 2D, 3L)
    
    //#2 nested tuple2
    val nestedTuple2 = 1 -> "Daniel" -> 2 -> "Mary"
    //  nestedTuple2: (((Int, String), Int), String) = (((1,Daniel),2),Mary)
    
    //#3 destruction
    val (id, name) = 1 -> "Daniel"