javascript - jquery droppable loses its original class -

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I need to get element ID and class when something is dropped on it id works fine, but the orbit Not passed ...

HTML 

  & lt; Div id = "drag" class = "two" & gt; Drag & lt; / Div & gt; & Lt; Div id = "drop" square = "one" & gt; Drop & lt; / Div & gt;   
 js  
  $ (document) .ready (function () {$ ("# drag"). Draggable (); $ ("# drop "). Dropable ({drop: function () {warning (this.class +" "+ this.id)}});   
   
 "post-text" itemprop = "text"> 
  
 As stated, when the draggable has been removed, then this square was retrieved, but 2 To use the  data - *  attribute that is started in HTML 5  
  $ (document) .ready (function () {$ ("# Drag "). Draggable ({revert: true}} $ (" # drop "). Droppable ({drop: }}}} {Alert ($ (this) .attr ('class') + "" + $ (this) .attr ('id'))}}}}    < / html>

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