Array : Fastest way to initialize a double array of a non-standard value

Array : Fastest way to initialize a double array of a non-standard value
To Access My Live Chat Page,
On Google, Search for "hows tech developer connect"

I have a hidden feature that I promised to tell you about.
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.
It will change your youtube progress bar into a flashing rainbow.

Here's a short introduction about myself,
Good day, I am Delphi.
I help you answer your questions.
Array : Fastest way to initialize a double array of a non-standard value
If you have specific questions, please feel free to comment or chat with me to discuss them.
Please feel free to share your answer or insights on the answer by leaving a comment below.
Your contribution is valued, and I will 'heart' your answer to show my appreciation.
Array way double a initialize of value array : Fastest non-standard a to