javascript - How to change position of element when onclick using jquery? -


i have 2 divs, .div_data , .div_update 

<select name=change_placement>     <option value=0>top</option>     <option value=1>bottom</option> </select>  <div class='div_data'>data data</div> <div class='div_update'>     <form name=stuff>         <input type=text>     </form> </div>

how .div_update precede .div_data when clicking on select[name=change_placement]?

i put id select , added option 'select' dropdown select. assuming want input text box go above other div when choose 'top'.

$('#change_placement').on('change', function() {     var option = $(this).val();     if(option == 0) {       $('.div_update').insertbefore($('.div_data'));     } else {       $('.div_update').insertafter($('.div_data'));     }  });
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>  <select name='change_placement' id='change_placement'>   <option value=''>select</option>   <option value='0'>top</option>   <option value='1'>bottom</option>  </select>    <div class='div_data'>   data   data  </div>  <div class='div_update'>   <form name=stuff>    <input type=text>   </form>  </div>


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