What is a memory leak in ios?
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what is singleton class? Why the whole application creates a single instance?
What is suspended state in ios?
Suppose I get a “blog returned invalid data” error message. What do I do?
What is block in ios?
What are ios apps written in?
Explain what is the stack of autorelease pools. How autorelease pool work under the hood?
what is navigation controller?
what is protocol? . The use of protocol?
Difference between retain and assign ?
Explain Inapp purchase in iOS
What is difference between static library and framework?
What is the mean of not running state in ios?