JS / AJAX：提交时没有刷新或按钮点击没有触发

Question

The js function will not work in my SITE but when I try it in JSFIDDLE it shows to work fine. I have included DOM ready but it doesn't trigger anything. I checked with firefox and input value is not posted at all. How can I get the JS function to fire up properly after user stops typing?

JS

<script>
$(document).ready(function() {
 var timer = null; 
 var dataString;   
 function submitForm(){
   alert("success");
   $.ajax({ type: "POST",
            url: "index.php",
            data: dataString,
            success: function(result){
              alert("success");
               /*$('#special').append('<p>' +  $('#resultval', result).html() + '</p>');*/

            }

   });
   return false;
 }
 $('#submit').on('keyup', function() {
    clearTimeout(timer);
    timer = setTimeout(submitForm, 2000);
    var name = $("#name").val();
    dataString = 'name='+ name;
 });
 }); 
</script>

HTML

 <input id="name" name="name" type="text" class="field text medium" value="<? $url ?>" maxlength="255" tabindex="1"     />

Answer 1

The problem is that in the HTML above you have id="name" but are binding to "#submit" .

You have id="submit" in your jsfiddle example, which is why it works.

Answer 2

在您的网站上，我找不到ID为“submit”的元素，因此$('#submit')返回空。