Display chunk options in output Quarto

Question

Is there a way to include the chunk options in the output?

For instance, in this case:

---
title: "Untitled"
format: html
editor: visual
---

```{r}
#| code-fold: true
#| label: example

1 + 1
```

How to get

#| code-fold: true
#| label: example

in the output (on top of them being actually used)?

Answer 1

You can add echo: fenced to your chunk options. It'll display all the chunk options in your output (except echo: fenced) as well as the ticks to make the chunk fully reproducible.

You can also add echo: fenced in your global options.

---
title: "Untitled"
format: html
editor: visual
---

```{r}
#| echo: fenced
#| code-fold: true
#| label: example

1 + 1
```

---

A second, less recommended option (more prone to errors) would be to add the options twice:

---
title: "Untitled"
format: html
editor: visual
---

```{r}
#| code-fold: true
#| label: example

#| code-fold: true
#| label: example

1 + 1
```