How to Externalise JavaScript from Data?

[MichaelCropper]

i.e.

1. HelloWorld.html = Contains Data Elements
2. HelloWorld.js = Contains JavaScript magic of D3

Summary of problems I'm having: https://stackoverflow.com/questions/76076607/jsp-struggling-with-javascript-module-syntax

Seems something related to ES6 JavaScript module stuff (and/or my lack of understanding)

[Fil]

I'm sorry but this question doesn't actually seem related to D3. Maybe try to get a simpler example to work in your environment—something like console.log("Hello, world").