Should you bother specifying the default values of the Objective-C @property declaration? For example, since the introduction of ARC the following two statements are equivalent:
@property NSArray *name; @property (strong, atomic, readwrite) NSArray *name; The following defaults apply to the first declaration:
For memory management a strong reference is the default over weak, copy, assign (retain is a synonym of strong). For thread safety atomic is the default over nonatomic For mutability readwrite is the default over readonly Some confusion arises because it easy to forget that strong has been the default for object types since the introduction of ARC.