Array : How to mark an array in POSIX sh?

Array : How to mark an array in POSIX sh?
To Access My Live Chat Page,
On Google, Search for "hows tech developer connect"

So here is a secret hidden feature I promissed to tell you.
This is a YouTube's feature which works on Desktop.
First, Ensure that the video is playing before proceeding.
Next, enter the letters 'awesome' on your keyboard.
You will see a flashing rainbow instead of a regular progress bar on YouTube.

An introduction to myself in a few words,
Greetings, my name is Delphi.
I can help you find the answers you are looking for.
Array : How to mark an array in POSIX sh?
Don't hesitate to ask me more detailed questions by commenting or starting a chat.
We appreciate your participation, so please feel free to comment below with your answer or insights.
Your answer will be recognized and appreciated with a 'heart' from me.
How mark Array to in an POSIX array : sh?