Operator

...(_:)

Returns a partial range extending upward from a lower bound.

Declaration

Parameters

minimum

The lower bound for the range.

Discussion

Use the postfix range operator (postfix ...) to create a partial range of any type that conforms to the Comparable protocol. This example creates a PartialRangeFrom<Double> instance that includes any value greater than or equal to 5.0.

let atLeastFive = 5.0...

atLeastFive.contains(4.0)     // false
atLeastFive.contains(5.0)     // true
atLeastFive.contains(6.0)     // true

You can use this type of partial range of a collection’s indices to represent the range from the partial range’s lower bound up to the end of the collection.

let numbers = [10, 20, 30, 40, 50, 60, 70]
print(numbers[3...])
// Prints "[40, 50, 60, 70]"

See Also

Comparing Scheduler Times

static func < (DispatchQueue.SchedulerTimeType, DispatchQueue.SchedulerTimeType) -> Bool

Returns a Boolean value indicating whether the value of the first argument is less than that of the second argument.

static func <= (DispatchQueue.SchedulerTimeType, DispatchQueue.SchedulerTimeType) -> Bool

Returns a Boolean value indicating whether the value of the first argument is less than or equal to that of the second argument.

static func == (DispatchQueue.SchedulerTimeType, DispatchQueue.SchedulerTimeType) -> Bool

Returns a Boolean value indicating whether two values are equal.

static func > (DispatchQueue.SchedulerTimeType, DispatchQueue.SchedulerTimeType) -> Bool

Returns a Boolean value indicating whether the value of the first argument is greater than that of the second argument.

static func >= (DispatchQueue.SchedulerTimeType, DispatchQueue.SchedulerTimeType) -> Bool

Returns a Boolean value indicating whether the value of the first argument is greater than or equal to that of the second argument.