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How to align an image dead center with bootstrap

I'm using the bootstrap framework and trying to get an image centered horizontally without success.. 15 Answers ...
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How to get the current URL within a Django template?

I was wondering how to get the current URL within a template. 10 Answers 10 ...
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Difference between Hashing a Password and Encrypting it

... Hashing is a one way function (well, a mapping). It's irreversible, you apply the secure hash algorithm and you cannot get the original string back. The most you can do is to generate what's called "a collision", that is, finding...
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Should I call Close() or Dispose() for stream objects?

...h as Stream , StreamReader , StreamWriter etc implements IDisposable interface. That means, we can call Dispose() method on objects of these classes. They've also defined a public method called Close() . Now that confuses me, as to what should I call once I'm done with objects? What if I ...
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Is mathematics necessary for programming? [closed]

I happened to debate with a friend during college days whether advanced mathematics is necessary for any veteran programmer. He used to argue fiercely against that. He said that programmers need only basic mathematical knowledge from high school or fresh year college math, no more no less, and that ...
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“A project with an Output type of Class Library cannot be started directly”

... The project you have downloaded compiles into a dll assembly and provide a set of classes with implemented functionality. You should add to your solution a new project with Output Type of either Console Application or Windows Application (VS Add Project wizard will...
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Pointer vs. Reference

What would be better practice when giving a function the original variable to work with: 12 Answers ...
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How to install 2 Anacondas (Python 2 and 3) on Mac OS

I'm relatively new in Mac OS. I've just installed XCode (for c++ compiler) and Anaconda with the latest Python 3 (for myself). Now I'm wondering how to install properly second Anaconda (for work) with Python 2? ...
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Deep copying an NSArray

Is there any built-in function that allows me to deep copy an NSMutableArray ? 6 Answers ...
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Thread-safe List property

... If you are targetting .Net 4 there are a few options in System.Collections.Concurrent Namespace You could use ConcurrentBag<T> in this case instead of List<T> ...