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In Swift how to call method with parameters on GCD main thread?

...() + 0.1) { // your code here } Older versions of Swift used: dispatch_async(dispatch_get_main_queue(), { let delegateObj = UIApplication.sharedApplication().delegate as YourAppDelegateClass delegateObj.addUIImage("yourstring") }) ...
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Add up a column of numbers at the Unix shell

...filenames. here is a perl one-liner instead. perl -nle 'chomp; $x+=(stat($_))[7]; END{print $x}' files.txt share | improve this answer | follow | ...
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How to get an array of unique values from an array containing duplicates in JavaScript? [duplicate]

... With underscorejs _.uniq([1, 2, 1, 3, 1, 4]); //=> [1, 2, 3, 4] share | improve this answer | follow ...
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What does “coalgebra” mean in the context of programming?

... property and setPosition function: class C private x, y : Int _name : String public name : String position : (Int, Int) setPosition : (Int, Int) → C We need two parts to represent this class. First, we need to represent the internal state of the object; in th...
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How to solve “Fatal error: Class 'MySQLi' not found”?

...amazon linux, it would be something like sudo yum install php56-mysqlnd.x86_64 (pick the one matching to which version of php you have installed) – auspicious99 Dec 3 '18 at 10:46 ...
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Please explain the exec() function and its family

...hat the child can do, and the parent halts until the child calls exec() or _exit(). The parent has to be stopped (and the child is not permitted to return from the current function) since the two processes even share the same stack. This is slightly more efficient for the classic use case of fork() ...
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Eclipse JUNO doesn't start

... that fixed it for me: rm YOUR_WORKSPACE/.metadata/.plugins/org.eclipse.core.resources/.snap credit: http://www.metod.si/job-found-still-running-after-platform-shutdown-eclipse/ ...
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What are the differences between SML and OCaml? [closed]

...fe but restricted equality types in SML), non-generalized type variables ('_a in OCaml), printf, interpretation of file names as module names in OCaml, far more currying in OCaml's stdlib. You wrote interface twice when you meant something else (implementation?) the second time. ...
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UIImagePickerController breaks status bar appearance

... of the solutions above worked for me, but by combining Rich86man's and iOS_DEV_09's answers I've got a consistently working solution: UIImagePickerController* imagePicker = [[UIImagePickerController alloc] init]; imagePicker.delegate = self; and - (void)navigationController:(UINavigationControl...
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Does the C++ standard mandate poor performance for iostreams, or am I just dealing with a poor imple

...ode compiled with GCC gives the following breakdown: 44.23% in std::basic_streambuf<char>::xsputn(char const*, int) 34.62% in std::ostream::write(char const*, int) 12.50% in main 6.73% in std::ostream::sentry::sentry(std::ostream&) 0.96% in std::string::_M_replace_safe(unsigned int, unsi...