Use date shortcode without triggering title blocks

[th0ger]

Hi! I would like to include the meta date shortcode in all webpage footers:

date: now
date-format: iso
website:
  page-footer: "Build: {{< env VERSION >}} @ {{< meta date >}} "

But the existence of date: now triggers the insertion of a title block.

Is it possible to insert now into a var or a custom x-date meta to work around this trigger?

A subset of my .qmd pages (blog posts) still need title blocks enabled. (Here dates are pinned values.)

[mcanouil]

Something like this for you to adapt to your exact use case.

---
title: "Quarto Playground"
format: html
date: now
date-format: iso
include-in-header:
  text: |
    <style type="text/css">
      #title-block-header.quarto-title-block.default .quarto-title-meta {
        display: none;
      }
    </style>
---

This is a playground for Quarto.

{{< meta date >}}

[mcanouil]

Alternatively, you could work using JavaScript.
Internally, I believe Quarto uses Day.js but it is not forwarded with the rendered documents.

---
title: "Quarto Playground"
format: html
include-after-body:
  text: |
    <script src="https://cdn.jsdelivr.net/npm/dayjs@1/dayjs.min.js"></script>
    <script>
    var elements = document.getElementsByClassName("build-date");
    Array.from(elements).forEach(function(element) {
      element.innerHTML = dayjs().format("YYYY-MM-DD");
    });
    </script>
subtitle: "[]{.build-date}"
---

This is a playground for Quarto.

I build this document on []{.build-date}.

You can even use _variables.yml (requires to be alongside a _quarto.yml) with:

build-date: "[]{.build-date}"

Then your document becomes:

---
title: "Quarto Playground"
format: html
include-after-body:
  text: |
    <script src="https://cdn.jsdelivr.net/npm/dayjs@1/dayjs.min.js"></script>
    <script>
    var elements = document.getElementsByClassName("build-date");
    Array.from(elements).forEach(function(element) {
      element.innerHTML = dayjs().format("YYYY-MM-DD");
    });
    </script>
subtitle: "{{< var build-date >}}"
---

This is a playground for Quarto.

I build this document on {{< var build-date >}}.