Typescript tuple lint error not consistent [vscode]

Question

Following along with this great video on how to use types in typescript.

But I notice an inconsistency with my text editor's linting and the video.

The video shows like this

And mine shows like this

If I change the code, so it should not lint any errors, I still get the errors

What is going on here?

Don't know if this matter but I'm on typescript 3.3.x and the video is on 3.1.x

Answer 1

The video declared the array as follows:

const arr: myList = []

And you declared it like that:

const arr: myList[] = []