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Truly understanding the difference between procedural and functional

I'm really having a hard time understanding the difference between procedural and functional programming paradigms. 9 A...
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How to grey out a button?

I have a button defined as shown below. When I want to disable it I use my_btn.setEnabled(false) , but I would also like to grey it out. How can I do that? ...
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How can you automatically remove trailing whitespace in vim

I am getting 'trailing whitespace' errors trying to commit some files in git. 13 Answers ...
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How do I get the last four characters from a string in C#?

Suppose I have a string: 19 Answers 19 ...
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Why can't variable names start with numbers?

I was working with a new C++ developer a while back when he asked the question: "Why can't variable names start with numbers?" ...
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How do I return early from a rake task?

I have a rake task where I do some checks at the beginning, if one of the checks fails I would like to return early from the rake task, I don't want to execute any of the remaining code. ...
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In Python, when should I use a function instead of a method?

The Zen of Python states that there should only be one way to do things- yet frequently I run into the problem of deciding when to use a function versus when to use a method. ...
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What is the minimum I have to do to create an RPM file?

I just want to create an RPM file to distribute my Linux binary "foobar", with only a couple of dependencies. It has a config file, /etc/foobar.conf and should be installed in /usr/bin/foobar. ...
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How do I check if I'm running on Windows in Python? [duplicate]

I found the platform module but it says it returns 'Windows' and it's returning 'Microsoft' on my machine. I notice in another thread here on stackoverflow it returns 'Vista' sometimes. ...
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How do I call ::std::make_shared on a class with only protected or private constructors?

I have this code that doesn't work, but I think the intent is clear: 16 Answers 16 ...