NodeJS : Node Mongo db.runCommand is not a function

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

Here's a secret feature that I promised to disclose to you.
This is a YouTube's feature which works on Desktop.
First, Make sure this video is playing.
Then, type the letters 'awesome' on the keyboard.
You will see a flashing rainbow instead of a regular progress bar on YouTube.

Here's a brief description of who I am,
Hello there, my name is Delphi.
Allow me to support you in answering your questions.
I am available to answer your more detailed queries via comments or chat.
If you have knowledge to contribute or an answer to provide, we encourage you to comment below.
Your answer will be recognized and valued, and I will 'heart' it to show my appreciation.