list-monad

Monads in JavaScript / sample implemantation

List monad derived from free-monoid

#### monad laws validation

``js
const util = require("util");
const validate = a => b => util.inspect(a) === util.inspect(b)
? true : false;

const f = x => (M)(x + 7);
const g = x => (M)(x * 5);
const a = 9;
const m = (M)(3)(5)(7);

console.log(
validate(
(M)(a).bind(f)
)(
f(a)
)
);
console.log(
validate(
m.bind(M)
)(
m
)
);
console.log(
validate(
m.bind(f)
.bind(g)
)(
m.bind(x => f(x)
.bind(g))
)
);
`

`sh
true
true
true
``