Java - Guidance of using wildcard in generic
Do not use bounded wildcard as a return value This will force client to use wildcard types
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C++11 - Monoid, Functor, Applicative Functor and Monad
How CPP express Monoid, Functor, Applicative Functor and Monad. The below documentation shows a good explanation. https://github.com/boostcon/cppnow_presenta...
Python - HTTP send a JSON object and decoding example
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Scala - ~> [Tilde arrow] explanation
"~>" is a place holder for type. Main reason to use "~>" is to make readable on type A goes to type B. This is possible because Scala allow to express ...
Java - Covariance, Contravariance and Invariance
https://stackoverflow.com/questions/8481301/covariance-invariance-and-contravariance-explained-in-plain-english