How to display MDN reference in JavaScript file

I have a strange problem in my vocode

• My editor has disabled the refences and the definition that is shown from MDN not in HTML nor CSS but it is only in my JavaScript file

I have made many things like :
write two following lines in settings.JSON and no thing happens

"editor.hover.enabled": true,
"editor.hover.delay": 300,

I has installed intellisense and the same result no thing changed

I need to show it when hovering

>Solution :

See this ref.

There is no official support for MDN reference for javascript until now.

This extension may help to some extent.