JavaScript variables are not being registered outside of cells

Describe the bug

Apologies if this is a misunderstanding of kernel limitations.

I can import a C# variable into JavaScript without issues. However, if I declare a JS variable in a JS cell using either let or const, that variable does not seem to be registered in the variables section, is not available in the next cell (even if it’s a JS cell), does not share correctly to C# or other kernels, and perhaps most interestingly, doesn’t log out at the end of the same cell it was defined in if it was the closing value as in:

let jsVar = 42;
jsVar; // jsVar is not displayed after the cell

JavaScript otherwise appears to function just fine, but variable persistence and sharing just isn’t working for me.

See https://github.com/IntegerMan/PolyglotNotebookTalk/blob/main/cs_js.dib for my sample notebook.

Please complete the following:

Which version of .NET Interactive are you using? (In a notebook, run the #!about magic command. ):

• OS
  • Windows 11
  • Windows 10
  • macOS
  • Linux (Please specify distro)
  • iOS
  • Android
• Browser
  • Chrome
  • Edge
  • Firefox
  • Safari
• Frontend
  • Jupyter Notebook
  • Jupyter Lab
  • nteract
  • Visual Studio Code
  • Visual Studio Code Insiders
  • Visual Studio
  • Other (please specify)

Screenshots

[IntegerMan]

I’d also put it in the FAQ as I checked that for this along with the kernels overview before opening the issue.

[IntegerMan]

Thank you so much for the reply @jonsequitur. I’ll play around with that tonight!