How to return value from this function

Hello All,

I am facing issue about getting a return value from the below function; Here i have added two alerts, the first alert(value + "11111111111111") is getting the correct value but the second alert is showing null. Not sure why.

function GetTranslatedValue(key)
             {
                 var value;
                 var locale_file_path;
                 var lang = user_PreferenceLanguage.split('-');
                 locale_file_path ="TestFoler/i18n/locale-"+lang[0]+".json";
                 var en_JSON;
                 var translated_JSON;
                 loadJSON("TestFoler/i18n/locale-en.json", function(response){
                     en_JSON = JSON.parse(response);
                 });

                 loadJSON(locale_file_path, function(response){
                     translated_JSON = JSON.parse(response);
                     value = translated_JSON[key] != null && translated_JSON[key] != "" ? translated_JSON[key] : en_JSON[key];  
                    
                     alert(value + "11111111111111"); //Getting correct value here
                 });

                 alert(value + "2222222222222"); //Getting null value. Not sure why

                 return value;
             }