gistfile1.txt

let primitiveTypes = [
  'number',
  'boolean',
  'string'
];

var flatten = function(parent, prefix, child) {
  if (isPrimitive(child)) {
    if (!parent) {
      parent = {};
    }

    if (child != null) {
      parent[prefix] = child;
    }

    return;
  }

  let getPrefix = function(key) {
    if (!prefix) { return key; } else { return prefix + '.' + key; }
  };

  if (Array.isArray(child)) {
    child.forEach((c, index) => flatten(parent, getPrefix(index), c));
  } else {
    Object.keys(child).forEach(key => flatten(parent, getPrefix(key), child[key]));
  }

};

var isPrimitive = value => (primitiveTypes.indexOf(typeof value) !== -1) || util.isDate(value) || (value === null) || (value === undefined) || (value.constructor && (value.constructor.name === 'ObjectID'));

let convertToDotNotation = function(value) {
  if (!value || isPrimitive(value)) {
    return value;
  }

  let obj = {};

  flatten(obj, null, value);

  return obj;
};