What are ios functions?
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What is nsuserdefaults? What type of data can we store there?
What is the difference between synchronous & asynchronous task ?
Is viewdidload only called once?
What are kvo and kvc?
Difference between ScrollviewdidScroll and didendDecelerating delegates?
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Explain me what is "delegate"?
What is cocoa and cocoa touch?
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Explain the difference between bounds and frame?
Will iphone 7 get ios 13?
What is difference between 'assign' and 'retain' keyword?