kotlin-examples/Writerside/topics/Collection.md

컬렉션

• listOf()

• setOf()

• mapOf()

• mutableListOf()

• mutableSetOf()

• mutableMapOf()

val numberSet = setOf("one", "two", "three")
val emptySet = mutableSetOf<String>()

val numberMap = mapOf("one" to 1, "two" to 2, "three" to 3)

빌더 함수

• buildList()

• buildSet()

• buildMap()

val map = buildMap{
    put("a", 1)
    put("b", 2)
}

빈 컬렉션

• emptyList()

• emptySet()

• emptyMap()

val empty = emptyList<String>()

복제

• toList()

• toMutableList()

• toSet()