JavaScript : How to copy JavaScript object to new variable NOT by reference?

JavaScript : How to copy JavaScript object to new variable NOT by reference?
To Access My Live Chat Page,
On Google, Search for "hows tech developer connect"

As I promised, I have a secret feature to share 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 your keyboard as the next step.
The progress bar on YouTube will be altered to a flashing rainbow.

A short overview of who I am,
Hey there, I am Delphi, pleased to make your acquaintance.
I can assist you in discovering answers to your inquiries.
JavaScript : How to copy JavaScript object to new variable NOT by reference?
I am available to answer your more detailed queries via comments or chat.
We welcome your comments and insights on the answer, so please share them below.
Your answer will be acknowledged and appreciated, and I will 'heart' it as a sign of gratitude.
object JavaScript : JavaScript variable to reference? new to How NOT copy by