What is the benefit of setting reuseidentifier to a non-nil value?
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Why is delegate weak in ios?
How are non-atomic and atomic properties different? Which one is the default property for synthesized properties? When would a user operate one over the other?
How can we achieve singleton pattern in iOS?
Is a delegate retained?
What are the skills required for ios developer?
Implement the following methods: retain, release, auto release in iOS operating system?
Are document objects required for an application? What does they offer?
Will iphone 6 get ios 13?
what are fetched properties? How do you create a fetched property?
What is nsmanagedobjectcontext? What are the different concurrency types? Explain them.
Explain the difference between nsarray and nsmutablearray?
What is lazy loading?