What is difference between class and struct swift?
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Is singleton thread safe swift?
What is dynamic in swift?
What do you mean by optional chaining in swift?
Does swift have header files?
What is optional binding?
What are regular expression and responder chain in swift?
What is nil-coalescing operator?
Is swift similar to python?
What are methods in swift?
Consider the following code: var array1 = [1, 2, 3, 4, 5] var array2 = array1 array2.append(6) var len = array1.count What’s the value of the len variable, and why?
What is the benefit of using guard statement in swift?
What is init() in swift?