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How == works with Case classes?

Case classes are compared by structure and not by reference.

case class Greeting(message: String)
val greet1 = Greeting (“Hello”)
val greet2 = Greeting (“Hello”)

val greetingsAreSame = greet1 == greet2 // true

Even though greet1 and greet2 refer to different objects, the value of each object is equal.

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