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jquery - What type of DOM Element?

e.g. if i have this:
<div id='mydiv'>whatever</div>

then let say in jQuery, how can I find out that the dom element with id "mydiv" is a DIV or is some other element type.

e.g. 
$('#mydiv').????  ?
question from:https://stackoverflow.com/questions/6114683/what-type-of-dom-element

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var type = $('#mydiv')[0].tagName

alert(type);
//displays "DIV"

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