title: jQuery object and DOM element
body: <p>I would like to understand relationship between jQuery object and DOM element..</p>
  
  <p>When jQuery returns an element it shows up as <code>[object Object]</code> in an alert. 
  When <code>getElementByID</code> returns an element it shows up as <code>[object HTMLDivElement]</code>. What does that mean exactly? I mean are both of them objects with a difference ?</p>
  
  <p>Also what methods can operate on jQuery object vs DOM element? Can a single jQuery object represent multiple DOM elements ?</p>