Instance MethodSwift
isValid(within:)
iOS 26.0+
iPadOS 26.0+
Mac Catalyst 26.0+
macOS 26.0+
tvOS 26.0+
visionOS 26.0+
watchOS 26.0+
Indicates whether the range is valid for use with the provided discontiguous attributed string.
func isValid(within text: DiscontiguousAttributedSubstring) -> BoolParameters
textA discontiguous attributed string used to validate the range.
Return Value
true when the range is valid for use with the provided discontiguous attributed string; otherwise, false. A range is valid if its lower and upper bounds are each either valid in the discontiguous attributed string or equivalent to the string’s endIndex.