[рони]

Shitbox2,

var  data = {
  ru: {
    pos:1,
    title:'Русский'
  },
  en: {
    pos:3,
    title:'English'
  },
  de: {
    pos:2,
    title:'Deutsch'
  }
}, arr = [] ;

Object.keys(data).forEach(function (key) {

   arr[data[key]['pos']-1]={code: key, title : data[key]['title']}
});
alert(JSON.stringify(arr))