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Difference between staticmethod and classmethod
What is the difference between a function decorated with @staticmethod and one decorated with @classmethod ?
27 Answers
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Regex to remove all (non numeric OR period)
I need for text like "joe ($3,004.50)" to be filtered down to 3004.50 but am terrible at regex and can't find a suitable solution. So only numbers and periods should stay - everything else filtered. I use C# and VS.net 2008 framework 3.5
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Using arrays or std::vectors in C++, what's the performance gap?
In our C++ course they suggest not to use C++ arrays on new projects anymore. As far as I know Stroustroup himself suggests not to use arrays. But are there significant performance differences?
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What's the difference between “version number” in iTunes Connect, “bundle version”, “bundle version
Apple's doc could have been more clear on how to submit an update version.
6 Answers
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What is the proper way to test if a parameter is empty in a batch file?
I need to test if a variable is set or not. I've tried several techniques but they seem to fail whenever %1 is surrounded by quotes such as the case when %1 is "c:\some path with spaces" .
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Changing a specific column name in pandas DataFrame
I was looking for an elegant way to change a specified column name in a DataFrame .
9 Answers
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Asking the user for input until they give a valid response
...put
age = int(input("Please enter your age: "))
except ValueError:
print("Sorry, I didn't understand that.")
#better try again... Return to the start of the loop
continue
else:
#age was successfully parsed!
#we're ready to exit the loop.
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XML schema or DTD for logback.xml?
...l discussions on the net about how great it would be to have an XML schema or DTD for logback.xml file to have at least the very basic validation and auto-completion in IDEs like IDEA or Eclipse, but I never saw any solution.
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What's the difference between @Secured and @PreAuthorize in spring security 3?
It's not clear for me what is the difference in spring security between :
5 Answers
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Bash if [ false ] ; returns true
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The idea of false being a command, or even a string, seems odd to me, but I guess it works. Thanks.
– tenmiles
Oct 29 '13 at 22:20
34
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