Jquery 比较字符串在 POST 中不起作用

发布于 2024-12-26 12:23:13 字数 514 浏览 0 评论 0原文

我有一个 jquery 邮政代码，可以根据响应有两种不同的反应。如果响应是 a 那么我想 alert() 如果它不是 a 那么我想更新一个 div (ratebox) 。但是，其中一行（如下）不起作用。当它应该发出警报时，它会将字母 a 附加到费率框上。我检查了answerating.php 确实生成了字母a。

查询：

$.post('../answerrating.php' , {answer_id: answer_id , direction: 2} , function(response){
        if (response == 'a'){  //this line doenst work
            alert("error");
        }
        else {
            ratebox.text(response);
            }
        });

原文

I have a jquery post code that can have two different reactions based on the response. if the response is a then i would like to alert() if it is not a then i would like to update a div (ratebox). However, one of the lines (below) isn't working. It appends the letter a onto the ratebox when it should bring up the alert. I checked that answerrating.php does produce the letter a.

JQUERY:

$.post('../answerrating.php' , {answer_id: answer_id , direction: 2} , function(response){
        if (response == 'a'){  //this line doenst work
            alert("error");
        }
        else {
            ratebox.text(response);
            }
        });

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机场等船 2025-01-02 12:23:13

也许您在响应中遇到一些空格，请尝试使用 jQuery.trim()：

if ($.trim(response) == 'a'){  //this line doenst work
   alert("error");
}

您还可以使用 firebug 进行检查，以便您的响应不包含任何 html。

如果您从服务器获取的不是纯文本，请尝试在调用中设置 dataType：

$.post('../answerrating.php',
  {
    answer_id: answer_id, 
    direction: 2
  }, 
  function (response) {
    //this line doenst work
    if (response == 'a') {
      alert("error");
    } else {
      ratebox.text(response);
    }
  },
  dataType: 'text'
);

Perhaps you get some whitespaces in the response, try using jQuery.trim():

if ($.trim(response) == 'a'){  //this line doenst work
   alert("error");
}

You could also use firebug to check so that your response don't include any html.

If you are getting something other than plain text from the server try setting the dataType in your call:

$.post('../answerrating.php',
  {
    answer_id: answer_id, 
    direction: 2
  }, 
  function (response) {
    //this line doenst work
    if (response == 'a') {
      alert("error");
    } else {
      ratebox.text(response);
    }
  },
  dataType: 'text'
);

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