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Why must we define both == and != in C#?

...he C# compiler requires that whenever a custom type defines operator == , it must also define != (see here ). 13 Answer...
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When should I use Inline vs. External Javascript?

I would like to know when I should include external scripts or write them inline with the html code, in terms of performance and ease of maintenance. ...
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Reference requirements.txt for the install_requires kwarg in setuptools setup.py file

I have a requirements.txt file that I'm using with Travis-CI. It seems silly to duplicate the requirements in both requirements.txt and setup.py , so I was hoping to pass a file handle to the install_requires kwarg in setuptools.setup . ...
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Visual Studio 2010 isn't building before a run when there are code changes

I've been using using F5 (Start Debugging) for years to build the code (if its out of date), and then debug. This was working on VS 2010 also, however today it just start debugging without a build. Say I do a clean on the project, and then hit F5 instead of building it so it can run it throws an err...
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What is the difference between “JPG” / “JPEG” / “PNG” / “BMP” / “GIF” / “TIFF” Image?

...le extensions). Wikipedia entries for each of the formats will give you quite a bit of information: JPEG (or JPG, for the file extension; Joint Photographic Experts Group) PNG (Portable Network Graphics) BMP (Bitmap) GIF (Graphics Interchange Format) TIFF (or TIF, for the file extension; Tagged I...
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What is the best open-source java charting library? (other than jfreechart) [closed]

...nly successful opensource project in this area seems to be jfreechart, and it doesn't even have any documentation or examples available. ...
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Git vs Team Foundation Server [closed]

I introduced Git to my dev team, and everyone hates it except me. They want to replace it with Team Foundation Server. I feel like this is a huge step backwards, although I am not very familiar with TFS. Can someone with experience compare branching support on TFS to Git branching? Also, in general,...
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Reflecting parameter name: abuse of C# lambda expressions or syntax brilliance?

...blic static void Foo(Func<object, string> f) { Console.WriteLine(f.Method.GetParameters()[0].Name); } } F#: Class1.Foo(fun yadda -> "hello") Result: "arg" is printed (not "yadda"). As a result, library designers should either avoid these kinds of 'abuses', or else at ...
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What's Up with Logging in Java? [closed]

...r of api apperance (as far as I know): Log4j because most everybody uses it (in my experience) Commons Logging because open source projects use it (so they can integrate with whatever logging framework is used in the integrated solution); especially valid if you're an API/Framework/OSS and you rel...
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Cookie blocked/not saved in IFRAME in Internet Explorer

I have two websites, let's say they're example.com and anotherexample.net . On anotherexample.net/page.html , I have an IFRAME SRC="http://example.com/someform.asp" . That IFRAME displays a form for the user to fill out and submit to http://example.com/process.asp . When I open the form (" som...