Operator

...(_:_:)

Returns a closed range that contains both of its bounds.

Declaration

static func ... (minimum: Character, maximum: Character) -> ClosedRange<Character>

Parameters

minimum

The lower bound for the range.

maximum

The upper bound for the range.

Discussion

Use the closed range operator (...) to create a closed range of any type that conforms to the Comparable protocol. This example creates a ClosedRange<Character> from “a” up to, and including, “z”.

let lowercase = "a"..."z"
print(lowercase.contains("z"))
// Prints "true"

See Also

Creating a Range Expression

static func ..< (Character, Character) -> Range<Character>

Returns a half-open range that contains its lower bound but not its upper bound.

static func ..< (Character) -> PartialRangeUpTo<Character>

Returns a partial range up to, but not including, its upper bound.

static func ... (Character) -> PartialRangeThrough<Character>

Returns a partial range up to, and including, its upper bound.

static func ... (Character) -> PartialRangeFrom<Character>

Returns a partial range extending upward from a lower bound.