Functional Programming Paradigm in JavaScript

Functional Programming is excellent for data processing, concurrent, high critical, and serverless systems. JavaScript cannot be compared with functional languages like Haskell, Erlang, Elm, etc., but it supports the functional paradigm very well. Pure functions in functional programming are predictable because the only thing they depend on is their input. Pure function returns the same result if given the same arguments. Immutability is a concept that has its roots in Functional Programming. It gives stricter control over your data, immediately making your code safer and more predictable.