export const send = (url, callback, data=null, type="POST") => {
  $.ajax({
    url: url,
    type: type,
    data: data,
    success: function(res) {
      (callback && typeof(callback) === "function") && callback(res);
    },  
    error: function(){
      (callback && typeof(callback) === "function") && callback([]);
    }  
  });
}