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conditionalAddElem
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.. js:function:: wv.Bcf.conditionalAddElem

   .. rst-class:: sig-pretty-signature
   
      | conditionalAddElem(**doc**\ : *XMLDocument*\ , **parentElem**\ : *HTMLElement*\ , **elementName**\ : *string*\ , **elementContent**\ : (*undefined* | *None* | *string*\ )): *void*
   
   **Parameters**
   
   
      **doc**\ : *XMLDocument*
   
      **parentElem**\ : *HTMLElement*
   
      **elementName**\ : *string*
   
      **elementContent**\ : (*undefined* \| *None* \| *string*\ )
   
   
   **Returns**\ : *void*
   




