Top "Idioms" questions

What does if __name__ == "__main__": do?

Given the following code, what does the if __name__ == "__main__": do? # Threading example import time, thread def myfunction(string, sleeptime, …

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var functionName = function() {} vs function functionName() {}

I've recently started maintaining someone else's JavaScript code. I'm fixing bugs, adding features and also trying to tidy up the …

javascript function syntax idioms

How do I reverse an int array in Java?

I am trying to reverse an int array in Java. This method does not reverse the array. for(int i = 0; …

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How can I loop through a C++ map of maps?

How can I loop through a std::map in C++? My map is defined as: std::map< std::string, …

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Python idiom to return first item or None

I'm sure there's a simpler way of doing this that's just not occurring to me. I'm calling a bunch of …

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Get the key corresponding to the minimum value within a dictionary

If I have a Python dictionary, how do I get the key to the entry which contains the minimum value? …

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What is the pythonic way to detect the last element in a 'for' loop?

I'd like to know the best way (more compact and "pythonic" way) to do a special treatment for the last …

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Python: most idiomatic way to convert None to empty string?

What is the most idiomatic way to do the following? def xstr(s): if s is None: return '' else: …

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String concatenation with Groovy

What is the best (idiomatic) way to concatenate Strings in Groovy? Option 1: calculateAccountNumber(bank, branch, checkDigit, account) { bank + branch + checkDigit + …

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How to implement the factory method pattern in C++ correctly

There's this one thing in C++ which has been making me feel uncomfortable for quite a long time, because I …

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