NodeJS : ES6 * Typescript : Cannot find namespace

NodeJS : ES6 * Typescript : Cannot find namespace
To Access My Live Chat Page,
On Google, Search for "hows tech developer connect"

As promised, I have a hidden feature that I want to share with you.
This is a YouTube's feature which works on Desktop.
First, Make sure this video is playing.
After that, type the word 'awesome' on your keyboard.
You will see a flashing rainbow instead of a regular progress bar on YouTube.

A brief introduction of myself,
Hi there, I go by the name of Delphi.
I can assist you in answering your queries.
NodeJS : ES6 * Typescript : Cannot find namespace
I am happy to answer more specific questions, so please feel free to comment or chat with me.
If you have an answer, or any insights to the answer, please comment below.
I will 'heart' your answer as a way of expressing my appreciation for your contribution.
: NodeJS : Typescript ES6 namespace find * Cannot