What json framework is supported by ios (iphone os)?

829

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What is the difference between viewdidload and viewdidappear?

815

---

What is @dynamic in objective-c ?

814

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What are different ways that you can specify the layout of elements in a uiview?

836

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Describe what “app thinning” means ?

823

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Compare and contrast the different ways of achieving concurrency in os x and ios.

919

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are you using charlesproxy ? Why/why not ?

935

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How could you setup live rendering ?

843

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What is dependency management?

832

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What’s the difference between not-running, inactive, active, background and suspended execution states?

778

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What is the use of double question marks (“??”) ?

877

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What are b-trees?

806

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What is a memory leak?

844

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Why don’t we use strong for enum property in objective-c ?

1063

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What is gcd? How is it used?

766

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