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MySQL: selecting rows where a column is null

... SELECT pid FROM planets WHERE userid IS NULL share | improve this answer | follow | ...
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Center HTML Input Text Field Placeholder

...e the placeholder behavior. Here is a sample of it: http://www.hagenburger.net/BLOG/HTML5-Input-Placeholder-Fix-With-jQuery.html. This way the style will work: input.placeholder { text-align: center; } share ...
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How to determine if object is in array [duplicate]

...r1. It will return -1 if car1 was not found in the array. http://jsfiddle.net/Fraximus/r154cd9o Edit: Note that in the question, the requirements are to check for the same object referenced in the array, and NOT a new object. Even if the new object is identical in content to the object in the arra...
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Django development IDE [closed]

...th Eclipse and use it for other projects it is a good way to go. I recall NetBeans starting to get Python support, but I have no idea where that is right now. Lots of people rave about NetBeans 6, but in the Java world Eclipse still reigns as the king of the OSS IDEs. ...
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In C# what is the difference between a destructor and a Finalize method in a class?

... by the ~ sign. Like- Class MyClass { ~MyClass() { ..... } } In VB.NET, destructors are implemented by overriding the Finalize method of the System.Object class. Dispose These are just like any other methods in the class and can be called explicitly but they have a special purpose...
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Recursively add the entire folder to a repository

... /R %%f in (*.*) do git add --force %%f (see bitbucket.org/jeroenp/besharp.net/src/tip/Scripts/GIT/…) – Jeroen Wiert Pluimers Oct 28 '13 at 9:49 10 ...
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What is the python keyword “with” used for? [duplicate]

... resources (like file streams). It is similar to the using statement in VB.NET and C#. It allows you to ensure that a resource is "cleaned up" when the code that uses it finishes running, even if exceptions are thrown. It provides 'syntactic sugar' for try/finally blocks. From Python Docs: The with...
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C# Sort and OrderBy comparison

...t;T>.Sort implementation. I am not sure if they improved this in newer .NET versions, but on my machine (i7 3rd gen 64-bit .NET 4.5 release) Sort outperforms OrderBy in all cases. Furthermore, by looking at OrderedEnumerable<T> source code, it seems that it creates three additional arrays (...
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'any' vs 'Object'

... Contrary to .NET where all types derive from an "object", in TypeScript, all types derive from "any". I just wanted to add this comparison as I think it will be a common one made as more .NET developers give TypeScript a try. ...
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Tutorials and libraries for OpenGL-ES games on Android [closed]

...here are some good OpenGL ES tutorials for Android here too: http://obviam.net/index.php/category/opengl/ share | improve this answer | follow | ...