Replaces the characters of the receiver with those in a given string.
- iOS 2.0+
- macOS 10.0+
- UIKit for Mac 13.0+Beta
- tvOS 9.0+
- watchOS 2.0+
The string with which to replace the receiver's content.
aString must not be
Modifying a String
Adds to the end of the receiver the characters of a given string.
This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.Learn more about using Apple's beta software