Returns a range from a textual representation.
- iOS 2.0+
- macOS 10.0+
- Mac Catalyst 13.0+
- tvOS 9.0+
- watchOS 2.0+
a for two integers which are used as the location and length values, in that order, to create an
NSRange struct. If
a only contains a single integer, it is used as the location value. If
a does not contain any integers, this function returns an
NSRange struct whose location and length values are both 0.