Evaluate html script stored in R object in R-markdown

May 5, 2022

In Rmarkdown, how can I implement/evaluate some HTML code stored in an R character object?

If I explicitly paste the code as plain text, it works as expected e.g. <details><summary>Show/hide.</summary>SomeText</details>.

However, I need to evaluate this from an R object; e.g. how to evaluate the content of the Text object: Text <- '<details><summary>Show/hide.</summary>SomeText</details>'?

Below is a reprex.

Thanks, Ahmed

---
title: "Literature notes"
output: 
  html_document:
    #code_folding: hide
---

<details><summary>Show/hide.</summary>SomeText</details> # This works

     ```{r, eval=TRUE, echo=F}
     Text <- '<details><summary>Show/hide.</summary>SomeText</details>'
     Text
     ## how to do the same using info stored in 'Text' object
     ```

>Solution :

You can use results='asis' in the code chunk:

---
title: "Literature notes"
output: 
  html_document:
    #code_folding: hide
---


```{r, eval=TRUE, echo=F, results='asis'}
 Text <- '<details><summary>Show/hide.</summary>SomeText</details>'
 cat(Text)
``