javascript - how to put two text inputs values to hidden input -


my html: 

   <li style="display: none;">     <span class="add-on"></span>     <input class="" type="text" value="" style="display: none;">     <input class="" type="hidden" name="biology" value="" style="display: none;">     <input class="datepicker" type="date">     </li>      <li>     <span class="add-on">ecconomics</span>     <input class="ecconomics" type="text" value="">     <input class="ecconomics" type="hidden" name="economics" value="">     <input class="datepicker" type="date">     </li>      <li>      <span class="add-on">business study</span>      <input class="business study" type="text" value="">      <input class="business study" type="hidden" name="business studies" value="">      <input class="datepicker" type="date">    </li>

my jquery:

$(document).on('keyup', function() {     var getdate = $(".datepicker").val();     var getmark = $("li > span + input").val();     var plusval = getdate + getmark;      $(".picker").val(plusval);  });

i want put .datepicker class value , first text input value hidden input value using javasscript/jquery. trying using above code no luck. have many <li> tags contain above 3 inputs text, hidden , datepicker. how do that?

loop through each li element , grab inputs inside, like:

$('li').each(function(){   var self= $(this);   var getdate= self.find('.datepicker').val();   var getmark= self.find('span + input').val();   var plusval = getdate + getmark;    self.find('.datepicker').val(plusval); })

it's not optimized or tested. idea.


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