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
Scala - Higher Kinded Type
https://stackoverflow.com/questions/6246719/what-is-a-higher-kinded-type-in-scala
Scala - By Name Parameters
Syntax: => A 1 2 3 4 5 def ifElse[A](test: Boolean, whenTrue: => A, whenFalse: => A): A = test match { case true => whenTrue case false =&g...