Returns an empty
NSMutable object with initial storage for a given number of characters.
- iOS 2.0+
- macOS 10.0+
- Mac Catalyst 13.0+Beta
- tvOS 9.0+
- watchOS 2.0+
The number of characters the string is expected to initially contain.
NSMutable object with initial storage for
The number of characters indicated by
capacity is simply a hint to increase the efficiency of data storage. The value does not limit the length of the string.