[feature] - incremental R output separate from code

[Shaunson26]

Is it possible to have incremental output chunks? I like to explain the code before revealing the output. Thus, I am often writing

```{r, eval=F}
#some code
``` 

--

```{r, echo=F}
#the same code
```

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[SNAnalyst]

It is not the solution you were looking for, but I will often use a tabbed slide for this.
So, I'll have one tab that I label "R code" and that has the R code and any annotations I want to present/discuss. Next to that I'll have a tab called "output" that shows the output from the code.
This has the advantage of allowing for even more tabs, for example a tab with improved/alternative code, etc.

It's not exactly what you requested, but it works very well for me and it doesn't require a new feature in Xaringan.