How to observe (KVO) count change in an NSMutableArray
30187
Observing count in NSMutableArray
39668
Is there a difference between an "instance variable" and a "property" in Objective-c?
90129
How to check if an NSDictionary or NSMutableDictionary contains a key?
129093
How to convert NSNumber objects for computational purposes?
108720
JAVA NIO Watcher: How to detect end of a long lasting (copy) operation?
62108
Objective-C variable dynamic naming/referencing at runtime
149221
Adding observer for KVO without pointers using Swift
99008
Objective-C: Count the number of times an object occurs in an array?
57373
Show the polycount of selected objects in object mode
125943
Avoid copying NSMutableArray for reading with multithreaded writes
122578
__NSArrayM insertObject:atIndex:]; object cannot be nil
50609
Objective-C: -[NSString wordCount]
54800
Why do I have to write *myPointerVar only SOMETIMES in Objective-C?
89006
Trying to populate NSMutableArray but get implicit conversion of int to id is disallowed with arc
6589
What's the Best Way to Shuffle an NSMutableArray?
121965
How does a delegate work in objective-C?
92743
How Can I convert NSMutableDictionary object into JSON format in Objective C