Jquery Ajax Return Readystate 1 Or Incorrect Data Type

I write script for Wordpress plugin and have problem with ajax response. When i want get json file, jQuery.ajax return {readyState: 1}. jQuery.ajax with async: false return plain t

Solution 1:

Ajax call returns promise so you have to use done menthod to work with result, for example:

 function GetJsonLanguageFile(url, lang) {
        return $.ajax({
            url: url,
            type: 'POST',
            dataType: 'json',
            // async: false,
            data: {action:'adminajax',method:'GetJsonLanguageFile',language: lang},
        });
}

GetJsonLanguageFile('some.url', lang).done(function(data) {
  // if it returns string insted of JSON try it:
  data = $.parseJSON(data);
  // do rest
  // window.json = data;
});