<aside> 🌟 SET:

</aside>

<aside> 🌟 Map:

</aside>

A Map is a collection that holds key-value pairs, where each key is unique. Maps are implemented in Kotlin as interfaces and have several concrete implementations such as HashMap and LinkedHashMap.

• HashMap is an unordered collection that uses a hash table for storage. It provides fast performance for add, remove, and get operations, but does not maintain the order of elements.
• LinkedHashMap is an ordered collection that uses a hash table and linked list for storage. It maintains the insertion order of elements and also provides fast performance for add, remove, and get operations.

val myMap = mapOf<Int, String>()

// or with initial key-value pairs:
val myMap = mapOf(1 to "One", 2 to "Two", 3 to "Three")`

// You can also use the map's specific implementation:
val hashMap = HashMap<Int, String>()
val linkedHashMap = LinkedHashMap<Int, String>()