Conditional rendering of headers for multiple listings

[l-gorman]

Description

Been using quarto a lot recently, so thank you for everything!

I'm creating a page that uses multiple listings, as shown in documentation here.

It looks like this:

When I use some filters, some listings do not contain any records covered by the selection of filters (as expected), see here:

It would be really helpful if the headers/listings could be rendered only in cases where they contain matching cards. Any thoughts of how to do this, or if there is a way to do this would be really helpful.

You can find my code here:
https://github.com/uob-training/uob-training.github.io

[mcanouil]

The header is unrelated to the listing.

This is the listing:

:::{#fundamentals}
:::

This is what you hardcoded independently of the listing:

## Fundamentals

These are courses which are not specific to
any programming language. They are useful skills 
to have regardless of the language you are using.

Quarto cannot know the two are tied together in your setup.

I suggest you define your own custom listing in which you add the headers which in there could be conditioned of the presence of at least one item.
See https://quarto.org/docs/websites/website-listings-custom.html.