var Mortgage = function(name) {
    this.name = name;
}
 
Mortgage.prototype = {
 
    applyFor: function(amount) {
        // access multiple subsystems...
        var result = "approved";
        if (!new Bank().verify(this.name, amount)) {
            result = "denied";
        } else if (!new Credit().get(this.name)) {
            result = "denied";
        } else if (!new Background().check(this.name)) {
            result = "denied";
        }
        return this.name + " has been " + result +
               " for a " + amount + " mortgage";
    }
}
 
var Bank = function() {
    this.verify = function(name, amount) {
        // complex logic ...
        return true;
    }
}
 
var Credit = function() {
    this.get = function(name) {
        // complex logic ...
        return true;
    }
}
 
var Background = function() {
    this.check = function(name) {
        // complex logic ...
        return true;
    }
}
 

    var mortgage = new Mortgage("Joan Templeton");
    var result = mortgage.applyFor("$100,000");
 
    console.log(result);

 

class CPU {
  freeze() { /* code here */ }
  jump(position) { /* code here */ }
  execute() { /* code here */ }
}

class Memory {
  load(position, data) { /* code here */ }
}

class HardDrive {
  read(lba, size) { /* code here */ }
}

/* Facade */

class ComputerFacade {
  constructor() {
    this.processor = new CPU();
    this.ram = new Memory();
    this.hd = new HardDrive();
  }

  start() {
    this.processor.freeze();
    this.ram.load(this.BOOT_ADDRESS, this.hd.read(this.BOOT_SECTOR, this.SECTOR_SIZE));
    this.processor.jump(this.BOOT_ADDRESS);
    this.processor.execute();
  }
}

/* Client */

let computer = new ComputerFacade();
computer.start();