Javascript Homework #4

functions.js

/**
 * All men are mortal
 * Socrates is a man.
 * Therefore, socrates is mortal.
 */

const Man = function(name) {
  this.name = name;
}

const mortals = [new Man('Socrates'), new Man('Plato'), new Man('Thales')];

const isMortal = (name) => {
  let internalName = name;
  if (typeof internalName === 'string' && !/[A-Z]/.test.name.charAt(0)) {
    internalName = internalName.split('');
    internalName[0] = internalName[0].toUpperCase();
    internalName = internalName.join('');
  }
  if (typeof internalName === 'string') {
    let i = 0, len = mortals.length;
    for (; i < len; i++) {
      for (let prop in mortals[i]) {
        if (mortals[i].hasOwnProperty('name') && mortals[i] instanceof Man && mortals[i].name === internalName) {
          return true;
        }
      }
    }
  }
  if (typeof internalName === 'undefined' ||
    typeof internalName === 'number') {
    return false;
  }
  if (typeof internalName === 'object') {
    if (internalName.length) {
      return false;
    } else if (internalName.hasOwnProperty('name') && typeof internalName.name === 'string') {
      let i = 0, len = mortals.length;
      for (; i < len; i++) {
        for (let prop in mortals[i]) {
          if (mortals[i].hasOwnProperty('name') && mortals[i] instanceof Man && mortals[i].name === internalName.name) {
            return true;
          }
        }
      }
    }
  }
  
  return false;
}

/**
 * This cake is either vanilla or chocolate.
 * This cake is not chocolate.
 * Therefore, this cake is vanilla.
 */
  
const Cake = function(flavor) {
  this.flavor = flavor;
}
  
const flavors = ['chocolate', 'vanilla'];
  
const makeCakeAndGetFlavor = (flavors, isChocolate) => {
  let cake = new Cake(flavors[1]);
  if (isChocolate) {
    cake = new Cake(flavors[0]);
  }
  
  return cake.flavor;
}