Pipe

pipe.js

// Pipe takes the first argument and pipes it though each of the functions that you provide as the remaining arguments,
// and can be implemented as follows:
const pipe = (...fns) => x => fns.reduce((v, f) => f(v), x);

const fn1 = s => s.toLowerCase();
const fn2 = s => s.split('').reverse().join('');
const fn3 = s => s + '!'

const newFunc = pipe(fn1, fn2, fn3);
const result = newFunc('Time'); // emit!

// This function composes functions without applying them
// See; https://www.obvibase.com/dev-blog/i-ve-used-the-pipe-function-2-560-times-and-i-can-tell-you-it-s-good
const ltrCompose = (...fns) => (x) => fns.reduce((acc, el) => fn(acc), x);