use https://github.com/tjmehta/object-loops instead

each.js

function each (o, fn) {
  Array.isArray(o) ? o.forEach(fn) :
  Object.keys(o).forEach(function (key, i) {
    fn.call(this, o[key], key, o)
  })
}

map.js

function map (o, fn) {
  if (Array.isArray(o)) return o.map(fn)
  var oc = {}
  Object.keys(oc).forEach(function (key) {
    oc[key] = fn.call(this, o[key], key, o)
  })
  return oc
}