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Git submodule head 'reference is not a tree' error
... super-project), there are two ways to do it.
The first requires you to already know the commit from the submodule that you want to use. It works from the “inside, out” by directly adjusting the submodule then updating the super-project. The second works from the “outside, in” by finding th...
How to convert an xml string to a dictionary?
I have a program that reads an xml document from a socket. I have the xml document stored in a string which I would like to convert directly to a Python dictionary, the same way it is done in Django's simplejson library.
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Should I use a data.frame or a matrix?
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Part of the answer is contained already in your question: You use data frames if columns (variables) can be expected to be of different types (numeric/character/logical etc.). Matrices are for data of the same type.
Consequently, the choice matrix/data.fram...
In C#, why is String a reference type that behaves like a value type?
...nt in .NET 1.0, and it was natural to follow Java, in which strings were already defined as a reference, rather than primitive, type. Plus, if string were a value type then converting it to object would require it to be boxed, a needless inefficiency).
– Qwertie
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How can I position my div at the bottom of its container?
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For others reading these comments: this has nothing to do with "pride" or being "cool". Using tables for layout is pragmatically even more painful especially for large amounts of content. Making sure you don't miss a td and sifting thro...
Is Ruby pass by reference or by value?
...eant. But thanks for the clarification, because it is important for future readers and I should have included it. (I'm always torn between including more info and not confusing people.)
– Chuck
Apr 26 '12 at 14:53
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Why should the Gradle Wrapper be committed to VCS?
...u had was a gradle version number in a build.gradle file, you would need a README explaining everyone that gradle version X must be downloaded from URL Y and installed, and you would have to do it every time the version is incremented.
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Javascript when to use prototypes
...ar & concise explanation of when & why to use prototypes that I've read. Thank you very much.
– GFoley83
May 8 '13 at 21:54
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What is the formal difference in Scala between braces and parentheses, and when should they be used?
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Ah, I was sure I had read that it was only the last parameter list, but clearly I was wrong! Good to know.
– Theo
Dec 8 '10 at 12:55
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javascript set a variable if undefined
...100% of the time, not just 98%. The advantage of === being it is easier to read, especially at a glance, shorter and avoids an unnecessary method call. Personally I would only use Object.is() when the situation requires it and prefer === in all other cases.
– blubberdiblub
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