How to pass the data between view controllers?
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What is singleton in swift?
Do try catch swift?
What is race condition in swift?
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?
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?
What is clean swift?
What is a delegate in swift?
What are ui elements?
What is a guard statement?
What language is similar to swift?
What are the higher order functions in swift?
What is swift programming?