What is optional binding?
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What are the advantages of using swift?
What is difference between 'let' and 'var' declaration ?
What is the characteristics of switch in swift?
What is swift in ios?
Do loops 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 race condition in swift?
What collection types are available in swift?
What is weak in swift?
Are arrays structs in swift?
What is swift programming language?
What is “defer”?