Get element type with jQuery

Is it possible, using jQuery, to find out the type of an element with jQuery? For example, is the element a div, span, select, or input?

For example, if I am trying to load values into a drop-down list with jQuery, but the same script can generate code into a set of radio buttons, could I create something like:

$('.trigger').live('click', function () {
   var elementType = $(this).prev().attr(WHAT IS IT);
});

Given a drop-down list with a button next to it with the trigger class, my elementType variable should return select upon the button being pressed.

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Getting the element type the jQuery way:

var elementType = $(this).prev().prop('nodeName');

doing the same without jQuery

var elementType = this.previousSibling.nodeName;

Checking for specific element type:

var is_element_input = $(this).prev().is("input"); //true or false

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你也可以使用：

$("#elementId").get(0).tagName

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你应该使用tagName属性和attr('type')作为输入

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