javascript - hiding parent when a span contains no content -

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i've been , down site , various questions related this, cannot find resolution this.

i'm try hide parent div "row" whenever span "specvalue" contains no data

    <div class="container-fluid" id="itmspecstbl">  <div class="row" id="row"><div class="col-xs-6" align="left"><b>accuracy</b> </div><div class="col-xs-6" align="right"><span id="specvalue"><%=getattribute('item','127559','custitem1','')%></span> </div></div>  <div class="row" id="row"><div class="col-xs-6" align="left"><b>drive type</b> </div><div class="col-xs-6" align="right"><span id="specvalue"><%=getattribute('item','127559','custitem2','')%></span> </div></div>  <div class="row" id="row"><div class="col-xs-6" align="left"><b>free speed</b> </div><div class="col-xs-6" align="right"><span id="specvalue"><%=getattribute('item','127559','custitem4','')%></span> rpm</div></div>  <div class="row" id="row"><div class="col-xs-6" align="left"><b>increments</b> </div><div class="col-xs-6" align="right"><span id="specvalue"><%=getattribute('item','127559','custitem5','')%></span> </div></div>  <div class="row" id="row"><div class="col-xs-6" align="left"><b>length</b> </div><div class="col-xs-6" align="right"><span id="specvalue"><%=getattribute('item','127559','custitem6','')%></span> in</div></div>  <div class="row" id="row"><div class="col-xs-6" align="left"><b>length</b> </div><div class="col-xs-6" align="right"><span id="specvalue"><%=getattribute('item','127559','custitem7','')%></span> mm</div></div>  <div class="row" id="row"><div class="col-xs-6" align="left"><b>max air consumption</b> </div><div class="col-xs-6" align="right"><span id="specvalue"><%=getattribute('item','127559','custitem8','')%></span> </div></div>  <div class="row" id="row"><div class="col-xs-6" align="left"><b>air inlet (npt)</b> </div><div class="col-xs-6" align="right"><span id="specvalue"><%=getattribute('item','127559','custitem37','')%></span> </div></div>    <div class="row" id="row"><div class="col-xs-6" align="left"><b>min torque</b> </div><div class="col-xs-6" align="right"><span id="specvalue"><%=getattribute('item','127559','custitem9','')%></span> ft lb</div></div>  <div class="row" id="row"><div class="col-xs-6" align="left"><b>max torque</b> </div><div class="col-xs-6" align="right"><span id="specvalue"><%=getattribute('item','127559','custitem10','')%></span> ft lb</div></div>  <div class="row" id="row"><div class="col-xs-6" align="left"><b>min torque</b> </div><div class="col-xs-6" align="right"><span id="specvalue"><%=getattribute('item','127559','custitem11','')%></span> in lb</div></div>  <div class="row" id="row"><div class="col-xs-6" align="left"><b>max torque</b> </div><div class="col-xs-6" align="right"><span id="specvalue"><%=getattribute('item','127559','custitem12','')%></span> in lb</div></div>  <div class="row" id="row"><div class="col-xs-6" align="left"><b>min torque</b> </div><div class="col-xs-6" align="right"><span id="specvalue"><%=getattribute('item','127559','custitem13','')%></span> in oz</div></div>  <div class="row" id="row"><div class="col-xs-6" align="left"><b>max torque</b> </div><div class="col-xs-6" align="right"><span id="specvalue"><%=getattribute('item','127559','custitem14','')%></span> in oz</div></div>  <div class="row" id="row"><div class="col-xs-6" align="left"><b>min torque</b> </div><div class="col-xs-6" align="right"><span id="specvalue"><%=getattribute('item','127559','custitem15','')%></span> kgf cm</div></div>  <div class="row" id="row"><div class="col-xs-6" align="left"><b>max torque</b> </div><div class="col-xs-6" align="right"><span id="specvalue"><%=getattribute('item','127559','custitem16','')%></span> kgf cm</div></div>  <div class="row" id="row"><div class="col-xs-6" align="left"><b>capacity</b> </div><div class="col-xs-6" align="right"><span id="specvalue"><%=getattribute('item','127559','custitemfi0073','')%></span> lbs</div></div>  <div class="row" id="row"><div class="col-xs-6" align="left"><b>min reach</b> </div><div class="col-xs-6" align="right"><span id="specvalue"><%=getattribute('item','127559','custitemfi0103','')%></span> in</div></div>  <div class="row" id="row"><div class="col-xs-6" align="left"><b>max reach</b> </div><div class="col-xs-6" align="right"><span id="specvalue"><%=getattribute('item','127559','custitemfi0104','')%></span> in</div></div>  </div>

the "getattribute" used pull data of items, when there's no data. it's blank - no spaces, nothing.

i've tried using :empty, :blank

#specvalue:empty #row, #specvalue:blank #row { display: none; }

this got me nowhere, same jquery

$("#specvalue:empty").parent().hide();

nothing has worked far, i've tried placing script inside <head> tag, , below after tech documents called.

do think need more specific css? see works on other examples, not on this.

i've removed duplicate id="row" , replaced id="specvalue" class="specvalue". simple jquery i've hidden rows empty specvalue.

note: keep in minde id's always have unique within full html page!

$('.specvalue').each(function(i, v) {    if ($(this).html() === '') {      $(this).closest('.row').hide();    }  });
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>  <div class="container-fluid" id="itmspecstbl">    <div class="row">      <div class="col-xs-6" align="left"><b>accuracy</b>       </div>      <div class="col-xs-6" align="right"><span class="specvalue">a</span>       </div>    </div>    <div class="row">      <div class="col-xs-6" align="left"><b>drive type</b>       </div>      <div class="col-xs-6" align="right"><span class="specvalue"></span>       </div>    </div>    <div class="row">      <div class="col-xs-6" align="left"><b>free speed</b>       </div>      <div class="col-xs-6" align="right"><span class="specvalue">b</span> rpm</div>    </div>  </div>


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