NodeJS : How to include javascript on client side of node.js?

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, Ensure that the video is playing before proceeding.
Then, type the letters 'awesome' on your keyboard as the next step.
Your YouTube progress bar will transform into a flashing rainbow.

An introduction to myself in a few words,
Hi, my name is Delphi, nice to meet you.
Let me help you with your questions.
Please feel free to comment or chat with me for more detailed information.
Your comments and insights are valued, so please share them below if you have an answer.
Your answer will be recognized and appreciated, and I will 'heart' it to show my appreciation.