Likewise, if you have an immutable reference to a mutable thing, youâre ensuring not that the mutable thing wonât change, just that your immutable reference wonât ever point to anything but what you set it to. Any errors resulting from modification is up to the implementation it could be desired or not, itâs not the compilers concern. Crearte a Mutable List If you want to create a mutable list, you can use the mutableListof () function. They can store multiple data items in it and you can also add or remove items from a mutable list. Immutable ensures that while you may not get the exact thing you wanted, it will still be in the form of that thing as described - mutating an âimmutableâ list, you still have a list with all the bells and whistles of a list. Mutable lists are highly used as a collection in the Kotlin programming language. If you introduce bugs through modifying the thing, thatâs an implementation detail, thatâs up to the developer to ensure. Now, in languages like Kotlin and Java, whatever you say the thing is, it is that thing. Some modern languages allow this too - Swift offers UnsafePointer, in which you tell it what that memory represents but it offers zero guarantees thatâs actually whatâs there. You can then pass that pointer around freely. Like in Java, it inherits from Collection and that. In C, you can use void pointers like a magic bullet - it can point to anything. The Kotlin List type is an interface that provides read-only operations like size, get and so on. In this program, youll learn to convert a list to an array using toArray() and array to list using asList() in Kotlin.The purpose is to prevent the reference from being mutated. The goal isnât to prevent modification, and mutable/immutable is more or less a misnomer. We can add elements to or remove elements from this Mutable List. Se puede recuperar un elemento por la posicin que se encuentra en la coleccin. Lots of great explanations of why you can do it and not why the opposite exists - immutability. Kotlin Mutable List is a collection of elements which can support modifications to the List. Una lista es una coleccin ordenada de datos.
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