index.js
function(obj, from) {
  for (var key in from) {
    if (!from.hasOwnProperty(key)) continue;
    obj[key] = from[key];
  }
  return obj;
}
function(obj, from) {
  for (var key in from) {
    if (!from.hasOwnProperty(key)) continue;
    obj[key] = from[key];
  }
  return obj;
}
Helpers