Operator

..<(_:_:)

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

Declaration

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

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"