JS Object.create() extension.js

/*
Native Object.create() does not works with properties if they are objects or arrays.
For example,
var p = {
  obj: {
    one: 1,
    two: 2
  }
};

var o = Object.create(p);
o.obj.one = 10; // <-- this also changed an original object's property, with this extension, it's fixed
console.log(p.obj.one); // prints 10, but 1 was expected.
console.log(o.obj.one); // 10

/**
 * Extends native Object.create() to create also objects from parent object properties if they are objects or arrays
 * @param {Object} proto
 * @param {Object} [propertiesObject]
 * @static
 * @return {Object}
 */
Object.create = function(proto, propertiesObject = null) {
    if (Array.isArray(proto)) {
        var o = [];
    } else {
        var o = {};
    }
    let properties = Object.keys(proto);
    for (let k = 0; k < properties.length; k++) {
        let property_name = properties[k];
        if (typeof proto[property_name] === 'object') {
            o[property_name] = Object.create(proto[property_name]);
        } else {
            o[property_name] = proto[property_name];
        }
    }
    if (propertiesObject !== null) {
        Object.defineProperties(o, propertiesObject);
    }
    return o;
};