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lu4nm3/ex8_smart.scala

Created May 16, 2020 20:13
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ex8_smart.scala
scala> val emailAddress = EmailAddress("[email protected]")
emailAddress: Either[String,EmailAddress] = Right(EmailAddress([email protected]))
scala> emailAddress.map(_.copy(emailAddress = "@example.com"))
res0: scala.util.Either[String,EmailAddress] = Right(EmailAddress(@example.com))
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