NodeJS : Check if a user already exists (Node.js and mysql)

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 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.

A short overview of who I am,
Hi there, I go by the name of Delphi.
I can be of service in providing you with answers to your inquiries.
Don't hesitate to leave a comment or start a chat if you have a more specific question.
If you have an answer or any additional information on the answer, please leave a comment below.
I will express my appreciation for your answer by 'hearting' it.