CS--scala

- Best Practice: write implicit conversion to types that you own
- Implicits can always be explicitly provided

Coursera courses
- https://www.coursera.org/learn/progfun1/home/welcome 
Cheatsheet for this course is present at https://github.com/lampepfl/progfun-wiki/blob/gh-pages/CheatSheet.md

- https://www.coursera.org/learn/progfun2/home/welcome
Cheatsheet for this course is present at https://github.com/sjuvekar/reactive-programming-scala/blob/master/ReactiveCheatSheet.md

progfun2
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- for expression can be expressed in terms of higher order functions map, flatMap, withFilter
- Monad is any Data structure with flatMap and unit operation
- map can be defined as a combination of flatMap and unit .. m map f == m flatMap(x => unit(f(x)))