Learn how to read and write NSData and NSStrings to disc.
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/73582/video-tutorial-saving-data-ios-part-1-nsstring-nsdata
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/73582/video-tutorial-saving-data-ios-part-1-nsstring-nsdata