? Why does Swift 1.2 require forced-unwrapping?

In Swift 1.2, the followinglet cell = tableview.dequeueReusableCellWithIdentififer("mycell"), forIndexPath: indexPath) as UITableViewCellnow must use !let cell = tableview.dequeueReusableCellWithIdent
 ? Why does Swift 1.2 require forced-unwrapping?

In Swift 1.2, the followinglet cell = tableview.dequeueReusableCellWithIdentififer("mycell"), forIndexPath: indexPath) as UITableViewCellnow must use !let cell = tableview.dequeueReusableCellWithIdent
 ? Why does Swift 1.2 require forced-unwrapping?

In Swift 1.2, the followinglet cell = tableview.dequeueReusableCellWithIdentififer("mycell"), forIndexPath: indexPath) as UITableViewCellnow must use !let cell = tableview.dequeueReusableCellWithIdent
 ? swift, optional unwrapping, reversing if condition

Let's say I have function which returns optional. nil if error and value if success:func foo() -> Bar? { ... }I can use following code to work with this function:let fooResultOpt = foo()if let fooR
 ? Why are multiple unwrapping optionals impossible?

I've been playing with optionals in swift. I make frequent use of the conditional unwrap pattern:var myOptional: AnyObject?if let unwrapped = myOptional {// do stuff}However, on occasion I have two op
 ? Why do I still need to unwrap Swift dictionary value?

class X { static let global: [String:String] = [ "x":"x data", "y":"y data", "z":"z data" ] func test(){ let type = "x" var data:String = X.global[type]!
 ? Why do I still need to unwrap Swift dictionary value?

class X { static let global: [String:String] = [ "x":"x data", "y":"y data", "z":"z data" ] func test(){ let type = "x" var data:String = X.global[type]!
 ? Why do I still need to unwrap Swift dictionary value?

class X { static let global: [String:String] = [ "x":"x data", "y":"y data", "z":"z data" ] func test(){ let type = "x" var data:String = X.global[type]!
 ? Initialize a dictionary with non-optional empty arrays in Swift

This question already has an answer here: println dictionary has “Optional” 2 answers When you acce
 ? Why '+=' does not work for implicitly unwrapped optionals?

This question already has an answer here: Incrementing an implicitly unwrapped optional 2 answers Implicitly un
 ? Why '+=' does not work for implicitly unwrapped optionals?

This question already has an answer here: Incrementing an implicitly unwrapped optional 2 answers Implicitly un
 ? Why '+=' does not work for implicitly unwrapped optionals?

This question already has an answer here: Incrementing an implicitly unwrapped optional 2 answers Implicitly un
 ? Incrementing an implicitly unwrapped optional

I declare an implicitly unwrapped optional as:var numberOfRows: Int!and initialize it in init:numberOfRows = 25Later I need to decrement it by one so I write:numberOfRows--but this doesn't compile. Th
 ? Implicitly Unwrapped Optional in method signature

From an API design standpoint, it seems to me that the use of Implicitly Unwrapped Optional (IUO) in method signature only benefits the method code (to not have to unwrap) instead of the caller.Take t
 ? Constant unassigned optional will not be nil by default

My understanding so far : If you define an optional variable without assign any values, the compiler will automatically assign the nilCode Snippets: A :var someOptional : Int? //Change to `let` to tri
 ? Why optional constant does not automatically have a default value of nil

This question already has an answer here: Constant unassigned optional will not be nil by default 1 answer Not

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