[swift] 44. 콜렉션 간 변형

Set -> Array

• Array(set)

let numbers = [1,1,1,5,5,9,7]
let uniqueNumbers = Set(numbers) // {1,7,9,5} (순서x)

Array -> Set

• Set(array)

var uniqueNumbersArranged =
	Array(uniqueNumbers)
uniqueNumbersArranged.sort() // [1,5,7,9]