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Should functions return null or an empty object?
What is the best practice when returning data from functions. Is it better to return a Null or an empty object? And why should one do one over the other?
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Database Design for Tagging
How would you design a database to support the following tagging features:
12 Answers
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ExpressJS How to structure an application?
I'm using the ExpressJS web framework for NodeJS.
21 Answers
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eval command in Bash and its typical uses
After reading the bash man pages and with respect to this post .
10 Answers
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Add a property to a JavaScript object using a variable as the name?
I'm pulling items out of the DOM with jQuery and want to set a property on an object using the id of the DOM element.
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Why is there “data” and “newtype” in Haskell? [duplicate]
It seems that a newtype definition is just a data definition that obeys some restrictions (e.g., only one constructor), and that due to these restrictions the runtime system can handle newtype s more efficiently. And the handling of pattern matching for undefined values is slightly different.
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How to use the pass statement?
I am in the process of learning Python and I have reached the section about the pass statement. The guide I'm using defines it as being a Null statement that is commonly used as a placeholder.
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The smallest difference between 2 Angles
Given 2 angles in the range -PI -> PI around a coordinate, what is the value of the smallest of the 2 angles between them?
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What differences, if any, between C++03 and C++11 can be detected at run-time?
It is possible to write a function, which, when compiled with a C compiler will return 0, and when compiled with a C++ compiler, will return 1 (the trivial sulution with
#ifdef __cplusplus is not interesting).
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What's the scope of the “using” declaration in C++?
I'm using the 'using' declaration in C++ to add std::string and std::vector to the local namespace (to save typing unnecessary 'std::'s).
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