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Calculate difference between two dates (number of days)?

I see that this question has been answered for Java , JavaScript , and PHP , but not C#. So, how might one calculate the number of days between two dates in C#? ...
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How to import a jar in Eclipse

...igure Build Path. Under Libraries tab, click Add Jars or Add External JARs and give the Jar. A quick demo here. The above solution is obviously a "Quick" one. However, if you are working on a project where you need to commit files to the source control repository, I would recommend adding Jar fil...
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How to copy an object in Objective-C

...copy a custom object that has objects of its own. I've been reading around and am a bit confused as to how to inherit NSCopying and how to use NSCopyObject. ...
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What is the maximum possible length of a query string?

...ot specify any maximum length, practical limits are imposed by web browser and server software. Based on research which is unfortunately no longer available on its original site (it leads to a shady seeming loan site) but which can still be found at Internet Archive Of Boutell.com: Microsoft Inter...
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Execution time of C program

...Windows machines (from the Win98 era) it was closer to 60ms. clock() is standard C; it works "everywhere". There are system-specific functions, such as getrusage() on Unix-like systems. Java's System.currentTimeMillis() does not measure the same thing. It is a "wall clock": it can help you measure...
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Custom fonts in iOS 7

I'm developing a game and I would like to use a custom font in my app. I'm using SpriteKit for it, if that's important. I've tried using this https://github.com/deni2s/IBCustomFonts but I cannot get it to work with this font http://www.fontspace.com/freaky-fonts/emulogic ...
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Alias with variable in bash [duplicate]

... I'd create a function for that, rather than alias, and then exported it, like this: function tail_ls { ls -l "$1" | tail; } export -f tail_ls Note -f switch to export: it tells it that you are exporting a function. Put this in your .bashrc and you are good to go. ...
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Javascript trick for 'paste as plain text` in execCommand

I have a basic editor based on execCommand following the sample introduced here. There are three ways to paste text within the execCommand area: ...
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Using the “final” modifier whenever applicable in Java [closed]

...eywords in your code, but pretty soon you'll stop noticing the word itself and will simply think, that-thing-will-never-change-from-this-point-on (you can take it from me ;-) I think it's good practice. I am not using it all the time, but when I can and it makes sense to label something final I'll ...
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IIS: Idle Timeout vs Recycle

...is if no action has been asked from your web app, it the process will drop and release everything from memory Recycle is a forced action on the application where your processed is closed and started again, for memory leaking purposes and system health The negative impact of both is usually the use...