I want to know how people attach css , js in their code(externally) without mentioning it in the header of html

Answer 1

<script src="Example.js"></script>
<link rel="stylesheet" href="example.css">

Answer 2

send me link which website you are saying..aap mujhe beje wo website jo aap ka sawal hai

Answer 3

no what i am asking is why cant i see it in the header section