What are structures in swift?
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Consider the following code: var defaults = NSUserDefaults.standardUserDefaults() var userPref = defaults.stringForKey("userPref")! printString(userPref) func printString(string: String) { println(string) } Where is the bug? What does this bug cause? What’s the proper way to fix it?
How to declare an empty dictionary in swift?
What is inheritance in swift?
What is the full form of swift code?
What are floating point numbers? How many types of floating number are there?
What is benefit of using higher order functions?
What will you do if your app is prone to crashing?
Is swift thread safe?
What is singleton class swift 3?
What is retain in swift?
Why swift is the best language?
Is "swift" a good programming language? Explain