What is the difference between weak and strong?
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Arc is compile time or run time feature?
What is the ? In swift?
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Will iphone 5s get ios 13?
What is libdispatch?
Define 'atomic' keyword?
What is foundation framework in ios?
Explain the difference between inheritance and category?
Multitasking support is available from which version in iOS operating system?
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Differentiate between ‘assign’ and ‘retain’ keyword.
Explain the correct way to manage Outlets memory in iOS.
What’s the difference between not-running, inactive, active, background and suspended execution states?