Returns the index for the element with ID foo within another element. : index « jQuery « JavaScript Tutorial

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JavaScript Tutorial » jQuery » index

30. 55. 4. Returns the index for the element with ID foo within another element.


<html>

  <head>

    <script type="text/javascript" src="js/jquery-1.3.2.js"></script>

    <script type="text/javascript">

        $(document).ready(function(){



            alert($("*").index( $('#foo')[0] ));





        });

    </script>

  </head>

  <body>

    <body>

        <div id="foobar"><b></b><span id="foo"></span></div>



    </body>

</html>

30. 55. index
	30. 55. 1.	Get index among query
	30. 55. 2.	On click, returns the index (based zero) of that div in the page.
	30. 55. 3.	Returns the index for the element with ID foobar.
	30. 55. 4.	Returns the index for the element with ID foo within another element.
	30. 55. 5.	Returns -1, as there is no element with ID bar.
	30. 55. 6.	Use switch to check the clicked button

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