Javascript Ajaxform在调用submit之前获取数据

我和你一起工作

我想提醒数据正在推送到服务器的内容

<form class='frmAppList'>
    <input type='hidden' name='deviceid' value='<deviceId>'>
    <input type='hidden' name='operationtype' value='<Coming from server>'>
    <input type='hidden' name='type' value='command'>
    <button type="submit" class='btnAppsList button'>
         APPS LIST
    </button>
</form>

我如何获得设备Id，请帮助我。。。。 非常感谢….

来自ajaxForm文档：

success
Callback function to be invoked after the form has been submitted. If a 'success' callback function is provided it is invoked after the response has been returned from the server. It is passed the following arguments:
1.) responseText or responseXML value (depending on the value of the dataType option).
2.) statusText
3.) xhr (or the jQuery-wrapped form element if using jQuery < 1.4)
4.) jQuery-wrapped form element (or undefined if using jQuery < 1.4)
Default value: null

---

好的，我知道了，但是我如何访问deviceId，如果我说

alert（form）

，它说[object，object]，如果我说

JSON.stringify（form）

，它抛出的错误是：在无法进行选择的输入元素上访问selectionDirection。这就是为什么我编写了console.log，而不是alert。您需要使用firebug或google chrome的开发者控制台。

success
Callback function to be invoked after the form has been submitted. If a 'success' callback function is provided it is invoked after the response has been returned from the server. It is passed the following arguments:
1.) responseText or responseXML value (depending on the value of the dataType option).
2.) statusText
3.) xhr (or the jQuery-wrapped form element if using jQuery < 1.4)
4.) jQuery-wrapped form element (or undefined if using jQuery < 1.4)
Default value: null

success : function(response,status,request,form) {
  console.log(request,form);
}