Operator

..<(_:_:)

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

Declaration

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

Parameters

minimum

The lower bound for the range.

maximum

The upper bound for the range.

Discussion

Use the half-open range operator (..<) to create a range of any type that conforms to the Comparable protocol. This example creates a Range<Double> from zero up to, but not including, 5.0.

let lessThanFive = 0.0..<5.0
print(lessThanFive.contains(3.14))  // Prints "true"
print(lessThanFive.contains(5.0))   // Prints "false"

See Also

Creating a Range Expression

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

Returns a closed range that contains both of its bounds.

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.