Coding 10 Feb 2016 Coding question print binary tree by level in Objective C This question was previously asked on the Facebook interview. Given input as a binary tree print to console each level… Andrey
Basic Questions in IOS & objective-c 05 Feb 2016 Difference between formal and informal protocols An informal protocol is a Category on NSObject. Implementation of the methods is optional. @interface NSObject(NSApplicationNotifications) - (void)applicationWillFinishLaunching:(NSNotification *)notification; ...… Andrey
Basic Questions in IOS & objective-c 03 Feb 2016 Difference between shallow copy and deep copy Shallow copy only copies a memory address. Changing one object will also change another. NSMutableArray *firstArray = [[NSMutableArray alloc] initWithObjects:@1,… Andrey
Basic Questions in IOS & objective-c 03 Feb 2016 Difference between frame and bound Frame is a CGRect that is relative to it's superview and bound is a CGRect that is relative to it's… Andrey
