MutableSet

public class MutableSet<Element> : Sequence, CustomStringConvertible where Element : CustomStringConvertible, Element : Hashable

A mutable, unordered collection of distinct objects.

  • A string representing the set

    Declaration

    Swift

    public var description: String { get }

  • Number of items in set

    Declaration

    Swift

    public var count: Int { get }

  • Sequence method to create an iterator for the MutableSet.

    Declaration

    Swift

    public func makeIterator() -> Set<Element>.Iterator

  • Inserts the given element in the set if it is not already present.

    Modifies: self

    Effects: adds elem to the set if it is not present

    Declaration

    Swift

    public func insert(_ elem: Element)

    Parameters

    elem

    Element to insert

  • Returns a Boolean value that indicates whether the given element exists in the set.

    Declaration

    Swift

    public func contains(_ elem: Element) -> Bool

    Parameters

    elem

    An element to look for in the set.

    Return Value

    true if member exists in the set; otherwise, false.