What is the usage of switch statement in swift language?
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What is set swift?
Explain me what is 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 an optional in swift?
What does appdelegate swift do?
What is the use of double question mark “??” In swift?
How can you declare a variable in swift?
What are the various ways to unwrap an optional in swift?
In swift, what type of object are basic data types?
How can we define a base class in swift?
How is swift different from objective-c?
Is swift easier than java?