Visual Studio Code. code runner. Code language not supported or defined. What to do?

Question

JavaScript

Everything: extensions added, tambourines danced, Yandex and Google searched.
The javascript code from the workspace does not run. There is no "Go live" button. When you click on the triangle at the top right, a message appears: "Code language not supported or defined. Source: Code Runner (extension)".

Answer 1

you are a bad dancer with tambourines.
at the first link:
https://www.youtube.com/watch?v=T7tXN9PtO9A