on Ruby one have something like this:
@var ||= 'value'
basically, it means that @var will be assigned 'value' only if @var is not assigned yet (e.g. if @var is nil)
I'm looking for the same on Kotlin, but so far, the closest thing would be the elvis operator. Is there something like that and I missed the documentation?
Other way we could do it is by using ifEmpty..
From the docs: https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.text/if-empty.html
Usage:
val empty = ""
val emptyOrNull: String? = empty.ifEmpty { null }
println(emptyOrNull) // null
val emptyOrDefault = empty.ifEmpty { "default" }
println(emptyOrDefault) // default
val nonEmpty = "abc"
val sameString = nonEmpty.ifEmpty { "def" }
println(sameString) // abc
EDIT:
Seems like this does not work if the initial value is NULL and only for strings..