How to get the number of DOM elements used in a web page

Question

Using jQuery I can get easily the number of DOM elemetns used by a web page:

$(\'*\').length;

But not all web sites are using jQuery.

Answer 1

It's quite simple really:

document.getElementsByTagName('*').length

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If you can ignore older browsers, you could also preserve some of the jQuery-like syntax with:

var $;
$ = document.querySelectorAll.bind(document);
$('*').length;