Can you explain regular expression and responder chain?
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What do you mean by a deinitializer?
What are the two main integer types in swift?
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 a delegate in swift?
How will you connect ui?
What is the characteristics of switch in swift?
What is the significance of “?” In swift?
What do you mean by optional chaining in swift?
What is dynamic keyword in swift?
What is difference between weak and strong in swift?
What is extension in swift?
Can you explain any three-shift pattern matching techniques?