html - JavaScript, No JQuery Please, how to get total count of specific tag inside an iframe -



html - JavaScript, No JQuery Please, how to get total count of specific tag inside an iframe -

i need know how total count of specific tag within iframe on same domain. using working illustration without iframe:

<div id="id_of_first_div"> <p> </p> <p> </p> <div> <p> </p> </div> <p> </p> <p> </p> </div> <script> var top_level_div = document.getelementbyid('id_of_first_div'); var count = top_level_div.getelementsbytagname('p').length; document.write(count); </script>

assuming iframe on same domain containing window:

ifr = // preferred method of getting <iframe> element, getelementbyid preferred count = ifr.contentdocument.getelementsbytagname('p').length;

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