Mention what is the use of po command in xcode?
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How can we use NSOperation queue? what is the advantage of using it ?
Will iphone 6s get ios 14?
what are fetched properties? How do you create a fetched property?
Is ios multithreading?
What does 2x resolution mean?
What is category and class extension?
A tableview with while tapping on cell show a popOver. and tapping on it move to another view controller, is it possible if yes? then how?
What is difference between 'assign' and 'retain' keyword?
What is a difference between stack and heap memory?
Why core data is faster than sqlite?
. Why an app on iOS device behaves differently when running in foreground than in background?
How to delete images in ios?