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Python argparse: default value or specified value
I would like to have a optional argument that will default to a value if only the flag is present with no value specified, but store a user-specified value instead of the default if the user specifies a value. Is there already an action available for this?
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Printing newlines with print() in R
I am trying to print a multiline message in R. For example,
4 Answers
4
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Responding with a JSON object in Node.js (converting object/array to JSON string)
I'm a newb to back-end code and I'm trying to create a function that will respond to me a JSON string. I currently have this from an example
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Locate the nginx.conf file my nginx is actually using
Working on a client's server where there are two different versions of nginx installed. I think one of them was installed with the brew package manager (its an osx box) and the other seems to have been compiled and installed with the nginx packaged Makefile. I searched for all of the nginx.conf file...
In C++, what is a “namespace alias”?
What is a "namespace alias" in C++? How is it used?
5 Answers
5
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SVN (Subversion) Problem “File is scheduled for addition, but is missing” - Using Versions
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7 Answers
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Change a column type from Date to DateTime during ROR migration
I need to change my column type from date to datetime for an app I am making. I don't care about the data as its still being developed.
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Java 8 functional interface with no arguments and no return value
What is the Java 8 functional interface for a method that takes nothing and returns nothing?
3 Answers
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sizeof single struct member in C
I am trying to declare a struct that is dependent upon another struct.
I want to use sizeof to be safe/pedantic.
9 Answer...
Redis key naming conventions?
What are the normal naming convention for keys in redis? I've seen values separated by : but I'm not sure what the normal convention is, or why.
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