A little bit of theory

⭐ Professor Frisby's Mostly Adequate Guide to Functional Programming

⭐ FantasyLand

⭐ Functional Programming Jargon

⭐ Static Land Specification

✅ Brian Lonsdorf - Oh Composable World!

✅ A Million Ways to Fold in JS

✅ Brian Beckman: Don't fear the Monad

⭐ Category Theory

⭐ Professor Frisby Introduces Composable Functional JavaScript

⭐ Monads in C#

⭐ The Marvels of Monads

✅ Javascript Functor, Applicative, Monads in pictures

Binary Operation on a set is a calculation that combines two elements of the set (called operands) to produce another element of the set.

Аssoсiаtivе is a property of some binary operations.

Commutative is when the order of the operands does not change the result.

Semigroup is an algebraic structure consisting of a set together with an associative binary operation

Identity element or neutral element is a special type of element of a set with respect to a binary operation on that set, which leaves other elements unchanged when combined with them.

Monoid is an algebraic structure with a single associative binary operation and an identity element.