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Constructor of an abstract class in C#

Why is it possible to write constructor for an abstract class in C#? As far as I know we can't instantiate an abstract class.. so what is it for? You can't instantiate the class, right? ...
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How to check if a string is a valid JSON string in JavaScript without using Try/Catch

... 22 Answers 22 Active ...
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Changing every value in a hash in Ruby

I want to change every value in a hash so as to add '%' before and after the value so 11 Answers ...
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How to check whether a script is running under Node.js?

I have a script I am requiring from a Node.js script, which I want to keep JavaScript engine independent. 20 Answers ...
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How to debug stream().map(…) with lambda expressions?

In our project we are migrating to java 8 and we are testing the new features of it. 6 Answers ...
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Good Hash Function for Strings

I'm trying to think up a good hash function for strings. And I was thinking it might be a good idea to sum up the unicode values for the first five characters in the string (assuming it has five, otherwise stop where it ends). Would that be a good idea, or is it a bad one? ...
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Can I change a private readonly field in C# using reflection?

I am wondering, since a lot of things can be done using reflection, can I change a private readonly field after the constructor completed its execution? (note: just curiosity) ...
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How to recover stashed uncommitted changes

I had some uncommitted changes in my development branch and I stashed them using git stash , but there were some changes which were very important among those stashed ones. Is there any way to get back those changes? ...
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IOCTL Linux device driver [closed]

Can anyone explain me, 2 Answers 2 ...
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What exactly does the .join() method do?

I'm pretty new to Python and am completely confused by .join() which I have read is the preferred method for concatenating strings. ...