CrowdlinkerJS.js

// a ‘dog’ object has the value of legs = 4. Create a new var named ‘fido’ as a 
// ‘dog’ object. Set fido’s age as ‘3’ and output the number of legs that 
// ‘fido’ has.
// 

// ES5
var dog = {
  legs: 4
};

var fido = Object.create(dog);
fido.age = 3;
console.log('Fido has ' + fido.legs + ' legs!');

// ES6 for fun and since I use this most.
const dog = {
  legs: 4
};

const fido = Object.assign(
  {}, 
  dog,
  { age: 3 }
);
console.log(`Fido has ${fido.legs} legs!`);