JavaScript : How to encrypt data that needs to be decrypted in node.js?

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

I promised to reveal a secret feature to you, and now it's time to share it.
This is a YouTube's feature which works on Desktop.
First, Make sure this video is playing.
Next, enter the letters 'awesome' on your keyboard.
Your YouTube progress bar will transform into a flashing rainbow.

A brief presentation of myself,
Greetings, my name is Delphi.
I can be of service in providing you with answers to your inquiries.
If you have more specific queries, please feel free to reach out through comments or chat.
Please feel free to share your answer or insights on the answer by leaving a comment below.
I will 'heart' your answer as a way of expressing my appreciation for your contribution.