If you're going to talk about the js knitr engine that ships with knitr, you might be interested in an R Markdown output format I created for the js4shiny package called html_document_js(). It overrides the default js knitr engine so that, in addition to the JavaScript code is running in the browser, output and console.log() statements are written into code chunks just like R code, but interactively and in the browser! (I can work up an example for you if you want.)

For R users who are learning JavaScript, the js4shiny package also includes a Shiny app slash RStudio addin with an interactive REPL for running JavaScript or prototyping web pages — it's a lot like a local version of codepen.io. You can fire it up by calling repl() or repl_js().

Finally, instead of countdown, I'd offer xaringanExtra as a better example of a few approaches to web dependency management in R packages:

use_tile_view() packages custom JavaScript and CSS
use_tachyons() repackages an external dependency
use_editable() combines custom JavaScript with external dependencies and passes configuration options from R to the code in the rendered document.
Finally use_logo() dynamically writes both the CSS and JS dependency from R and bundles into an htmlDependency().

maelle commented 4 years ago

Thank you!! I'm glad you find the topic interesting, I might ping you once I have a draft (with no pressure!). Thanks a ton for the resources.

maelle commented 4 years ago

https://colinfay.me/hello-hordes/

maelle commented 4 years ago

https://github.com/rstudio-conf-2020/js-for-shiny (no blog post on RStudio Education yet?)

@gadenbuie that is a very impressive workshop website btw!!

maelle commented 4 years ago

Three topics

JS for Shiny
JS for interactive visualizations/tables (so htmlwidgets)
JS for when you see an interesting JS library you need in your R code (V8 reverse dependencies)

maelle commented 4 years ago

And add something about JS in man pages cf #56

maelle commented 4 years ago

For vignettes, link to vignettes articles, for pkgdown remind that there can be incompatibilities when you e.g. add a leaflet map

maelle commented 4 years ago

Also the topic of learning, depends on what language you're learning (JS as an R user or vice versa) and what for. Add links to a few resources.

r-hub / blog

JS in R packages #115

JS in R packages

JS in knitr/ R Markdown

JS literate programming

Different problem

Shiny

htmlwidgets

JS for R users, how to learn

JS literate programming

Learning materials

Playground

Others