how can I use JavaScript code in HTML document?

Question

I wanna use some Js code for some tags but how?

Answer 1

If I understand your question correctly, all you have to do is place your javascript in a <script> tag. Like so:
<script>
...Javascript code...
</script>

Answer 2

:P I understand now why ask a non-sense thing

Answer 3

yes I know that but I try to unlock my achievements😂 thanks bro