[tech][jquery] AJAX 在 error 時顯示錯誤訊息

AJAX 在 error 時顯示錯誤訊息

在 AJAX error 時，跳出 alert

$.post("test.php", function(data) {
   alert("Data Loaded: " + data);
})
.error(function() { 
   alert("error"); 
})

如何秀出 error message

error: function(xhr, status, error) {
  var err = eval("(" + xhr.responseText + ")");
  alert(err.Message);
}

合併起來的例子

$.post("test.php", function(data) {
   alert("Data Loaded: " + data);
}).error: function(xhr, status, error) {
  var err = eval("(" + xhr.responseText + ")");
  alert(err.Message);
}

php - How to get the jQuery $.ajax error response text? - Stack Overflowhttps://stackoverflow.com/questions/1637019/how-to-get-the-jquery-ajax-error-response-textjavascript - jQuery.post() failure callback function? - Stack Overflow https://stackoverflow.com/questions/6046898/jquery-post-failure-callback-function