Explain some common execution states in ios?
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What is instance variable in swift?
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How should errors be handled 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?
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How you define variables in swift language?
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What is floating point number in swift?
Why do we use swift? Mention some advantages of swift?
How to post an http request with a json body in swift?
Explain how you define variables in Swift language?