What is gcd in ios swift?
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When a nsfetchrequest fetches an entity object from store, does it fetch all of its data at once?
What is difference between synchronous and asynchronous in web request in iOS operating system?
Which API is used to write test scripts that help in exercising the application's user interface elements?
What is inactive state in ios?
Is ios development hard?
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Difference between cocoa, cocoa touch and objective c?
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What is delegate and protocol in ios?
What is gcd in ios swift?
Is it safe to update to ios 13?