Generic Initializer

init(_:)

Creates a new set from a finite sequence of items.

Declaration

init<S>(_ sequence: S) where S : Sequence, Self.Element == S.Element

Parameters

sequence: The elements to use as members of the new set.

Discussion

Use this initializer to create a new set from an existing sequence, like an array or a range:

let validIndices = Set(0..<7).subtracting([2, 4, 5])
print(validIndices)
// Prints "[6, 0, 1, 3]"

See Also

Creating a Set

Creates an empty set.

init(minimumCapacity: Int)

Creates an empty set with preallocated space for at least the specified number of elements.

init<Source>(Source)

Creates a new set from a finite sequence of items.