HTML : How to insert row at end of table with HTMLTableElement.insertRow

To Access My Live Chat Page,
On Google, Search for "hows tech developer connect"

I promised to share a hidden feature with you, and here it is.
This is a YouTube's feature which works on Desktop.
First, Make sure the video is currently in playing mode.
Then, type the letters 'awesome' on the keyboard.
You will see a flashing rainbow instead of a regular progress bar on YouTube.

Allow me to introduce myself briefly,
Howdy, my name's Delphi.
I am here to help you get the answers you are seeking.
If you need more specific information, let me know by leaving a comment or starting a chat.
We welcome your thoughts and feedback, so please comment below with your answer or insights to the answer.
Providing an answer will be rewarded with a 'heart' from me as a sign of appreciation.