bbum questions

bbum answers

• Instruments show memory leak - Xcode 5 / iOS7
• Extending existing classes by adding instance variables
• Memory management - finding bugs earlier
• Is `super` local variable?
• Blocks and messaging
• Is it bad practice to return a mutable object when the return value is an immutable object?
• Best place to clean-up App global resources?
• Objective-C getValue
• for loop randomly hanging on executeFetchRequest:error:
• ARC - why do object pointers require explicit ownership type in function definitions?