What is dispatch queue in ios swift?
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Whats the difference between frame and bounds?
What is retain in ios?
What is atomic and nonatomic in iOS operating system? What is run loop in iOS ?
How do I open a csv file on my phone?
what are fetched properties? How do you create a fetched property?
If any app can run in the background, what about battery life?
What is the latest version of ios?
What is category in ios?
What are ios apps coded in?
What is main thread checker?
Explain me what is "delegate"?
What is cococa and cocoa touch?