Dammmien

class OrderStatus {
  constructor(name, nextStatus) {
    this.name = name;
    this.nextStatus = nextStatus;
  }

  doSomething() {
    console.log('Do nothing by default');
  }

Dammmien

class ShoppingCart {

  constructor(discount) {
    this.discount = new discount();
    this.amount = 0;
  }

  checkout() {
    return this.discount.apply(this.amount);
  }

Dammmien

#!/usr/bin/env node

const http = require('http');
const url = require('url');
const fs = require('fs');
const path = require('path');
const [ runtime, scriptName, port = 3000, folder = process.cwd() ] = process.argv;

class Server {