斯卡拉暗示练习

Question

我正在练习从https://www.scala-exercises.org/std_lib/implicits

对于下列问题，我的答案似乎不正确，但我不知道为什么。

object MyPredef { 

    class KoanIntWrapper(val original: Int) { 
    def isOdd = original % 2 != 0 

    def isEven = !isOdd 
    } 

    implicit def thisMethodNameIsIrrelevant(value: Int) = 
    new KoanIntWrapper(value) 
} 

import MyPredef._ 
//imported implicits come into effect within this scope 
19.isOdd should be(true) //my answer but it seem incorrect 
) 
20.isOdd should be(false) //my answer but it seem incorrect 

的错误是There was a problem evaluating your answer, please try again later.

Answer 1

正确的答案是true和false相应地，所以你的答案是正确的。

你有多余的右括号：

19.isOdd should be(true) //my answer but it seem incorrect 
) // <-- HERE 
20.isOdd should be(false) //my answer but it seem incorrect 

祝你好运与学习Scala。

---

现在检查了这个练习，一切正常。所以这似乎是一些暂时的问题。