FND 9

number.js

function pipe(...functions) {
  return input => functions.reduce((value, func) => func(value), input);
}

function multiplyTwice(x) {
  return x * 2;
}

function addFive(x) {
  return x + 5;
}

const number = 3;

// pipe()가 없을 때
addFive(multiplyTwice(number));

// pipe()를 사용했을 때
const multiplyAndAdd = pipe(multiplyTwice, addFive);

multiplyAndAdd(number);