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Clojure differences between Ref, Var, Agent, Atom, with examples

...here to use Ref, Var, Agent, Atom. I read book, but, still couldn't understand the real world examples. 5 Answers ...
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Get encoding of a file in Windows

This isn't really a programming question, is there a command line or Windows tool (Windows 7) to get the current encoding of a text file? Sure I can write a little C# app but I wanted to know if there is something already built in? ...
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Java - get pixel array from image

...ster().getDataBuffer()).getData(); If you are working with large images and performance is an issue, the first method is absolutely not the way to go. The getRGB() method combines the alpha, red, green and blue values into one int and then returns the result, which in most cases you'll do the rev...
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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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prototype based vs. class based inheritance

In JavaScript, every object is at the same time an instance and a class. To do inheritance, you can use any object instance as a prototype. ...
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Javascript set img src

... a dynamically generated page. So the obvious thing to do is to preload it and use that one variable as the source all the time. ...
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Handling a colon in an element ID in a CSS selector [duplicate]

...the beginning of a pseudo-element to the browser so it gets marked invalid and ignored. Is there anyway to escape the colon or something? ...
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What is the meaning of prepended double colon “::”?

...wered Nov 24 '10 at 16:27 Wyatt AndersonWyatt Anderson 8,42811 gold badge1919 silver badges2424 bronze badges ...
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In Python, how do I determine if an object is iterable?

... in our code as well for this purpose, but I've lately started to get more and more annoyed by objects which only have __getitem__ being considered iterable. There are valid reasons to have __getitem__ in a non-iterable object and with them the above code doesn't work well. As a real life example we...
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Measure the time it takes to execute a t-sql query

...asuring the "elapsed time" between events is to just grab the current date and time. In SQL Server Management Studio SELECT GETDATE(); SELECT /* query one */ 1 ; SELECT GETDATE(); SELECT /* query two */ 2 ; SELECT GETDATE(); To calculate elapsed times, you could grab those date values into var...