deep clone javascript object

deepClone.md

function cloneObject(obj) {
  const clone = Object.keys(obj).reduce((acc, prop) => {
  	acc[prop] = obj[prop] === Object(obj[prop]) ? cloneObject(obj[prop]) : obj[prop];
    return acc;
  }, {});

  return clone;
};

Based on Lyndsey Browning's Deep Cloning JavaScript Objects with following additions:

1. Check if a value is an object in JavaScript
2. Use recursion