```
data class EmailAddress(value: String) {
in...
# announcementsu
ursus
09/12/2019, 3:53 PM Copy code
data class EmailAddress(value: String) {
init {
if value is not email regex then error("Invalid value")
}
}2 Views
ursus
09/12/2019, 3:53 PMdata class EmailAddress(value: String) {
init {
if value is not email regex then error("Invalid value")
}
}