contains(_:)

Declaration

func contains(_ other: ClosedRange<Bound>) -> Bool

Parameters

• other:

  A closed range to check for containment within this range.

Return Value

true if other is wholly contained within this range; otherwise, false.

Discussion

The given closed range is contained within this range if its bounds are contained within this range. If this range is empty, it cannot contain a closed range, since closed ranges by definition contain their boundaries.

let range = 0..<10
range.contains(2...5)        // true
range.contains(2...10)       // false
range.contains(2...12)       // false

let emptyRange = 3..<3
emptyRange.contains(3...3)   // false