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How do you add a timer to a C# console application

... nice, however in order to simulate some time passing we need to run a command that takes some time and that's very clear in second example. However, the style of using a for loop to do some functionality forever takes a lot of device resources and instead we can use the Garbage Collector to do som...
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Mean per group in a data.frame [duplicate]

I have a data.frame and I need to calculate the mean per group (i.e. per Month , below). 8 Answers ...
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Listing only directories in UNIX

... doesn't have such option). Also, can this be done with a single line command? 20 Answers ...
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Download and open PDF file using Ajax

...sarily have chosen Ajax for this otherwise?). Besides, there is no way to handle this nicely acynchronously. PDF is not character data. It's binary data. You can't do stuff like $(element).load(). You want to use completely new request for this. For that <a href="pdfservlet/filename.pdf">pdf&l...
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Is there a reason that we cannot iterate on “reverse Range” in ruby?

I tried to iterate backwards with using a Range and each : 12 Answers 12 ...
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Pure JavaScript equivalent of jQuery's $.ready() - how to call a function when the page/DOM is ready

...ur code at the end of the body. This is faster to execute than an onload handler because this waits only for the DOM to be ready, not for all images to load. And, this works in every browser. <!doctype html> <html> <head> </head> <body> Your HTML here <script>...
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How to convert int[] to Integer[] in Java?

I'm new to Java and very confused. 13 Answers 13 ...
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Disable, but not uninstall Resharper 4.x onwards

... You can disable ReSharper 4 and lower using the Visual Studio Add-In Manager (remove the check from check box on the left). In ReSharper 5 and above (tested up to version 7.0.1), this is how you can suspend ReSharper from the Tools > Options > Re...
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Method Syntax in Objective-C

...kerView (slot machine UI on the iPhone) is being returned. From my understanding, the Method is called ' pickerView ', and returns an NSInteger. ...
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Why is require_once so bad to use?

... require_once and include_once both require that the system keeps a log of what's already been included/required. Every *_once call means checking that log. So there's definitely some extra work being done there but enough to detriment th...