example.qmd

---
title: "Quarto Drop plugin for Reveal.js"
subtitle: "A dropdown R or Python console"
format: revealjs
revealjs-plugins:
  - drop
---

## Quarto Drop plugin for Reveal.js

Throughout this presentation, an interactive R console and editor can be invoked by pressing the drop shortcut

By default, the drop shortcut is the backtick key: [`]{style="background-color: #EEE; border: 1px solid #333; border-radius: 5px; padding: 0px 8px"}

. . . 

</br>

Alternatively, click the console button in the bottom left of the slide

## Configuration

Set the drop shortcut and button visibility in the `yaml` header.

```yaml
---
format:
  revealjs:
    drop:
      button: false
      shortcut: "]"
---
```

## Execution Engine

For a Python console, set the `pyodide` engine in the `yaml` header.

```yaml
---
format:
  revealjs:
    drop:
      engine: pyodide
---
```

## Default packages

Automatically download packages when the presentation starts

```yaml
---
format:
  revealjs:
    drop:
      engine: webr
      webr:
        packages:
          - ggplot2
          - dplyr
---
```