* Learning path github.com/bitemyapp…

* Functional

* Two values of functional

* Functions are first-class, that is, functions are values which can be used in exactly the same ways as any other sort of value.

* The meaning of Haskell programs is centered around evaluating expressions rather than executing instructions.

* Pure

Haskell expressions are always referentially transparent, that is:

* No mutation! Everything (variables, data structures…) is immutable.

* Expressions never have “side effects” (like updating global variables or printing to the screen).

* Calling the same function with the same arguments results in the same output every time.

* Lazy

* Statically Typed

* Helps clarify thinking and express program structure

* Serves as a form of documentation

* Turns run-time errors into compile-time errors

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