如何计算Div中隐藏的输入元素的数量

Question

here is the code :

   <div class="upload"><br>
  <br>
  <br>
  <input type="hidden" value="" id="SWFUpload_0_3" name="jpg_uploaded_files[]">
  <br>
  <input type="hidden" value="" id="SWFUpload_0_4" name="jpg_uploaded_files[]">
  <br>
  <input type="hidden" value="" id="SWFUpload_0_5" name="jpg_uploaded_files[]">
  <br>
  <input type="hidden" value="" id="SWFUpload_0_6" name="jpg_uploaded_files[]">
  <br>
  <input type="hidden" value="" id="SWFUpload_0_7" name="jpg_uploaded_files[]">
  <br>
  <input type="hidden" value="" id="SWFUpload_0_8" name="jpg_uploaded_files[]">
  <br>
</div>

Answer 1

工作演示

试试这个

 $('.upload input:hidden').length