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Can't use Swift classes inside Objective-C

... -Swift.h file, only the bridging headers. So I created it, but it's actually empty. I can use all my ObjC classes in Swift, but I can't do it vice versa. I marked my swift class with @objc but it didn't help. What can I do now? ...
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Default string initialization: NULL or Empty? [closed]

... Distinguishing between NULL and empty is great when there is actually a difference between the two. There are many cases, though, where there is not a difference, and thus having two ways of representing the same thing is a liability. – Greg Smalter ...
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Rails layouts per action?

...th this is that you cannot access objects such as current_user to conditionally determine the layout – Andrew K Dec 14 '14 at 5:25 ...
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Creating a new empty branch for a new project

...branches departing from the original branch. But now we want to create a small new project to track some documentation. For that we would want to create a new empty branch to start storing our files, and I would want other users of the network to clone that branch. ...
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back button callback in navigationController in iOS

...elegate if it should pop the top UINavigationItem by calling navigationBar(_:shouldPop:). UINavigationController actually implement this, but it doesn't publicly declare that it adopts UINavigationBarDelegate (why!?). To intercept this event, create a subclass of UINavigationController, declare its ...
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jQuery - Create hidden form element on the fly

What is the simplest way to dynamically create a hidden input form field using jQuery? 6 Answers ...
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How to export data as CSV format from SQL Server using sqlcmd?

...th '""' + col1 + '""' AS col1, wrapped in (doubled) double quotes or just call a stored procedure. – MisterIsaak Dec 11 '13 at 17:17 ...
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Finding sum of elements in Swift array

...st) way to find the sum of an array of integers in swift? I have an array called multiples and I would like to know the sum of the multiples. ...
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Remove a string from the beginning of a string

... Plain form, without regex: $prefix = 'bla_'; $str = 'bla_string_bla_bla_bla'; if (substr($str, 0, strlen($prefix)) == $prefix) { $str = substr($str, strlen($prefix)); } Takes: 0.0369 ms (0.000,036,954 seconds) And with: $prefix = 'bla_'; $str = 'bla_string...
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Pick any kind of file via an Intent in Android

...for camera but for other files.. In my device I have ES File Explorer installed and This simply thing works in my case.. Intent intent = new Intent(Intent.ACTION_GET_CONTENT); intent.setType("file/*"); startActivityForResult(intent, PICKFILE_REQUEST_CODE); ...