get(index) → Element

This allows you to extract the actual DOM element and operate on it directly without necessarily using jQuery functionality on it. This function called as $(this).get(0) is the equivalent of using square bracket notation on the jQuery object itself like $(this)[0].
Access the element in the Nth position

Example:

Gives the tag name of the element clicked on.

$("*", document.body).click(function (e) {
      e.stopPropagation();
      var domEl = $(this).get(0);
      $("span:first").text("Clicked on - " + domEl.tagName);
    });

<span>&nbsp;</span>
  <p>In this paragraph is an <span>important</span> section</p>

  <div><input type="text" /></div>

span { color:red; }
  div { background:yellow; }