gistfile1.txt

function startSettingBackednLanguage(){
 
  //1. Get user language
  var curLangRef = firebase.app.database().ref('users/'+firebase.app.auth().currentUser.uid);
      curLangRef.on('value', function(snapshot) {
            var currentLangData=snapshot.val()&&snapshot.val().language?snapshot.val().language.toUpperCase():"GB";
            language=currentLangData;
            Translation.fetchAndSetLanguageAndSetUser(currentLangData,false,function(allAvailableLanguages){
              loggedIn=true;
              availableLaguages=allAvailableLanguages;
              displayApp();
            });
            
        },function(e){
          alert(e.message)
        });
}