Object.prototype.hasProperty = function(properties) {
  var finalProperty = this;

  if (properties.constructor !== Array) {
    properties = [properties];
  }

  try {
    properties.forEach(function checkProperty(property) {
      finalProperty = finalProperty[property];
    });
  } catch (e) {
    return false;
  }

  return finalProperty !== undefined;
}

var a = {b: {c: {}}};

if (a.hasProperty(['b', 'c'])) {
  console.log("definido!");
} else {
  console.log("indefinido!");
}