main.js
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const person = {  
  name: 'Dave',
  surname: 'Bowman'
};

const personB = Object.create(person, {  
  profession: {
    value: 'Astronaut',
    enumerable: true
  }
});

const cloneB = {  
  ...personB
};
console.log(cloneB); // => { profession: 'Astronaut' }  
Babel Compiler v6.4.4 Copyright (c) 2014-2015 Sebastian McKenzie