What is the difference between swift and objective c?
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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 dependency injection in swift?
What is clean swift architecture?
What is nil in swift?
What is a protocol in swift?
What is mvc in swift?
Explain some common features of protocols & superclasses.
What is observer in swift?
Do swift classes inherit from nsobject?
Why swift is faster?
The String struct doesn’t provide a count or length property or method to count the number of characters it contains. Instead a global countElements<T>() function is available. When applied to strings, what’s the complexity of the countElements function: O(1) O(n) and why?
What is the purpose of swift?
Apple iOS 
