需要帮助从jquery响应中选择一个元素

Question

I am trying to get the value of a hidden input element from a jquery ajax response. The default value for the hidden element is 0. But after the jquery post has been completed the hidden input value attribute gets changed to a different number(by php)

For some reason when I select the element from the data var (the response variable) and pass it into the html() function, it shows the value as 0 for the hidden input

Below is my code...

       $.post(url,obj_param)


           .done(function (data) {

               console.log(data);

               var thread_id = $("#thread").html(data);

               console.log(thread_id);



           });

     }

Here is a snippet of my html code

<section class="message_form">
    <form action="http://localhost/GuruCoders/index.php/messages/NewMessageThread/index" class='msg_form' id='59' method="post" accept-charset="utf-8">
    <div id="err_msg"> Please enter a message to send </div>

    <textarea name="msg" class="msg" id="59" cols="30" rows="10"></textarea>
    <br>
    <input type="submit" name="send" value="Send">
    </form>


   <!-- The value returns as 0 not 55 -->
    <input type="hidden" id="thread" value="55" name="thread"/>
</section>

Answer 1

Well first of all I don't know why you use $("#thread").html(data); ..

However, if you want to SET the value you can use $("#thread").val(data); and if you want to GET the value you can use $("#thread").val(); .