1. Pure functions #

Created Thursday 25 March 2021

What are pure functions? #

• Have a single purpose.
• Should be free from side-effects(i.e change to external variables), as much as possible.
• Always return something.

How to write pure functions? #

• Use const and avoid using function keyword as much as possible.
• This makes our code deterministic(each function is a mathematical function, not just a relation), and consequently more robust.