[jupyter-kernel] Deno enabled in VScode breaks notebooks

[karelklima]

Deno language features within Jupyter notebooks do not work in VScode if Deno is enabled in the workspace.

System:

• Windows 10
• Deno 1.37.2
• Python 3.12.0
• VS Code: 1.83.1
• Deno vscode extension: 3.26.0
• Jupyter vscode extension: 2023.9.1102792234

Steps to reproduce:

• create an empty folder and open it in VS Code
• create a Jupyter Notebook file, select Deno kernel and TypeScript language
• in the Notebook, create a variable in one code block and reference it in a second code block - at this point everything works
• create deno.json file
• go to the Jupyter Notebook file - at this point the deno autocomplete is broken, the variable reference does not work anymore

[nayeemrmn]

This is tracked in denoland/vscode_deno#932. The same thing would happen with Deno disabled if you used imports in one of the cells, it's just that Deno is always in ESM mode.

[karelklima]

@nayeemrmn Thanks for referencing and closing this issue, I didn't find that before posting this one.