slidy & ioslides compatibility issues

[assignUser]

Hello, thanks for the package!

The formats vignette mentions that learnr files can be used as slidy or ioslodes presentations which would be great! But there are a few issues I came across with the following reprex:

---
output: slidy_presentation
runtime: shiny_prerendered
title: "ioslides demo"
---

```{r setup, include=FALSE}
library(learnr)
tutorial_options(exercise.eval = FALSE)
```

## modify

Modify the following code to limit the number of rows printed to 5:

```{r print, exercise=TRUE}
mtcars
```

```{r print-hint}
head(mtcars,5)
```

Issues

• both disregard tutorial_options(exercise.eval = FALSE) and render the code chunk anyway
• the hint works with slidy but isn't visible with ioslides
• You can only ever print the current slide via the browser print function with slidy (it works great with ioslides)
  • I have tested this on multiple PCs with both chrome and firefox but I have not found a way to print all slides at once with slidy

These might be minor things but break our use case: lecture presentations with embedded exercises/code chunks for demonstration and additional exercises for the students to solve on their own (but also part of the slides). Slidy would work for this if not for the broken printing feature as most of our students do print lectures on paper to add notes (or use a tablet+pen with pdf) .

Session Info

─ Session info ────────────────────────────────────────────────────────
 setting  value
 version  R version 4.2.0 (2022-04-22 ucrt)
 os       Windows 10 x64 (build 19044)
 system   x86_64, mingw32
 ui       RStudio
 language (EN)
 collate  English_United States.utf8
 ctype    English_United States.utf8
 tz       Europe/Berlin
 date     2022-07-05
 rstudio  2022.02.2+485 Prairie Trillium (desktop)
 pandoc   2.18 @ C:/PROGRA~3/CHOCOL~1/bin/ (via rmarkdown)

─ Packages ────────────────────────────────────────────────────────────
 package     * version date (UTC) lib source
 cli           3.3.0   2022-04-25 [1] CRAN (R 4.2.0)
 digest        0.6.29  2021-12-01 [1] CRAN (R 4.2.0)
 evaluate      0.15    2022-02-18 [1] CRAN (R 4.2.0)
 fastmap       1.1.0   2021-01-25 [1] CRAN (R 4.2.0)
 htmltools     0.5.2   2021-08-25 [1] CRAN (R 4.2.0)
 knitr         1.39    2022-04-26 [1] CRAN (R 4.2.0)
 rlang         1.0.2   2022-03-04 [1] CRAN (R 4.2.0)
 rmarkdown     2.14    2022-04-25 [1] CRAN (R 4.2.0)
 sessioninfo   1.2.2   2021-12-06 [1] CRAN (R 4.2.0)
 xfun          0.31    2022-05-10 [1] CRAN (R 4.2.0)
 yaml          2.3.5   2022-02-21 [1] CRAN (R 4.2.0)

 [1] C:/Users/jacob/AppData/Local/R/win-library/4.2
 [2] C:/Program Files/R/R-4.2.0/library