Why firefox console showing unnecessary things-CodePudding

i want just to see the content of the div but firefox is showing me a lot of null and non unnecessary attributes. please help me to hide those attibutes??

On Chrome the same thing happens:

Source:

<!DOCTYPE html>
<html>
    <body>
        <div id="this-is-an-id"  custom-attribute="this-is-a-custom-attribute">This is the content of the div</div>
    </body>
</html>

CodePudding user response：

The problem appear when realoding the page.

But I found a solution to it, By using

window.onload = function() { console.log(Element)}

i don't know if the problem is in my browser but i try firefox, chrome, Edge and it does the same behavior.