The obvious downside to such a apprach is that I must not forget to change this class, in case i change User, something that looks very dangerous to me.īut I'm not sure how to do this. Here’s an example of a simple map operation in both languages: Scala: val numbers List (1, 2, 3, 4, 5) val doubled numbers. This means you can easily apply your knowledge of higher-order functions, immutability, and pattern matching to Kotlin. It seems to me that its is only available for static members and to what are primitives in Java and do not compile for class-variables: data class User(val name: String, val id: Int)įun getUser(): User ")Ĭonst val (name, id) = getUser() // does not compile eitherĪs this seems not to work, I think what i really want is a second class, that deletes the operations i don't want to support: class ConstUser : UserĬonstUser(var name: String, val id: int) : base(name, id) mutableListOf - Kotlin Programming Language JVM JS Native Version 1. Kotlin, like Scala, supports functional programming. Methods in this interface support only read-only access to the list read/write access is supported through the MutableList interface.
It seems to very different to const in C++. kotlin-stdlib / llections / List List Common JVM JS Native 1.0 interface List
DynamoDB Enhanced to support immutable Kotlin data classes. But I don't think constants in kotlin are what I think they are. Immutability in Java is a commonly used style that allows developers to create classes that.
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