HTML : html element id as javascript variable

HTML : html element id as javascript variable
To Access My Live Chat Page,
On Google, Search for "hows tech developer connect"

I have a hidden feature that I promised to tell you about.
This is a YouTube's feature which works on Desktop.
First, Ensure that the video is playing before proceeding.
Then, type the letters 'awesome' on the keyboard.
It will change your youtube progress bar into a flashing rainbow.

An introduction to myself in a few words,
Hi, my name is Delphi, nice to meet you.
I am capable of providing answers to your questions.
HTML : html element id as javascript variable
If you need more specific answers, please leave a comment or start a chat with me.
Don't hesitate to provide your answer or insights by leaving a comment below.
I will 'heart' your answer to show my gratitude for your contribution.
html HTML : variable id as element javascript