What do you mean by optional chaining in swift?
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What are the tools that are required to develop ios applications?
Why do we need closure in swift?
What is init() in swift?
What is the latest version of swfit programming?
Can you explain any three-shift pattern matching techniques?
What mechanism does ios support for multi-threading?
Is swift an object-oriented programming language?
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?
Is swift pass by reference?
Difference in classes and structures in swift?
How many access levels are present in swift?
What are swift properties?