// Created on savesnippets.com · https://savesnippets.com/yrzPmzt4inc79N
const pipe = (...fns) => (x) => fns.reduce((v, f) => f(v), x);

const compose = (...fns) => (x) => fns.reduceRight((v, f) => f(v), x);

// Usage
const double    = (x) => x * 2;
const addOne    = (x) => x + 1;
const square    = (x) => x * x;

const transform = pipe(double, addOne, square);
console.log(transform(3)); // ((3*2)+1)^2 = 49

const transform2 = compose(square, addOne, double);
console.log(transform2(3)); // same result: 49