NodeJS : How to detect a global value change in Node.js

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

As promised, I'm going to share a hidden feature with you.
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.
It will change your youtube progress bar into a flashing rainbow.

Let me give you a quick introduction about myself,
Hello everyone, I'm Delphi.
Allow me to provide support in answering your questions.
I welcome your comments and chats if you have more detailed queries.
Please feel free to leave a comment below if you have an answer or insights on the answer.
I will 'heart' your answer to show my gratitude for your contribution.