Scala 引用相等 [英] Scala reference equality

问题描述

如何在 Scala 中测试引用相等性?

How do you test reference equality in Scala?

val x = new Obj
val y = x
x.referenceEquals(y) // evaluates to true

推荐答案

你要找的函数是 eq，它是 AnyRef:

The function you are looking for is eq, which is a member of AnyRef:

val x = new Obj
val y = x
x eq y // evaluates to true
x ne y // evaluates to false

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