Alert text of span tag inside div with jQuery Droppable -

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js fiddle can found here. have 2 sets of divs, ones can draggable , droppable. i'm trying add text inside of span element on array element caused drop event fired cannot cause second drop fired (not pertinent @ moment because doesn't work either).
why isn't alert($(this).find("span").text()); finding alerting text of span tag inside element dragged?

html

  <div id="quizcontainer">          <div id="questionscontainer">          <div class="drugquizzes">             <span>docusil</span>         </div><div class="drugquizzes">             <span>oracea</span>         </div><div class="drugquizzes">             <span>zyloprim</span>         </div>     </div>         <div id="answerscontainer">       </div>     <div class="druganswers" style="background-color:palevioletred;">      </div><div class="druganswers" style="background-color:palevioletred;">      </div><div class="druganswers" style="background-color:darkkhaki;">      </div>

to text of dropped element, change:

alert($(this).find("span").text());

to

alert(ui.draggable.find('span').text());

jsfiddle example


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