Is there a way to convert the R code back to JS?

[lillianlu-nz]

Hi there,

I'm an R user and love the echarts4r package. However, I was recently asked whether I can provide the code in JS so the graph can be embedded on our website easily. I don't know much JavaScript so it'd be difficult to write it from scratch.

Is there a way/function to convert what I've created in R into the code like this: https://echarts.apache.org/examples/en/editor.html?c=area-basic

I imagine it'd be similar to running the shiny widgets in RStudio console to get the HTML code output.

I tried the jsonlite package but it didn't work. No luck with Chat GPT too...

Thank you so much!

[JohnCoene]

You can retrieve the JSON

https://echarts4r.john-coene.com/reference/echartsnjson?q=Json#null

Let me know if that worked

[lillianlu-nz]

Thank you for your prompt response! It worked well. It adds quotation marks to all the properties though, so I did some wrangling to get rid of them.

# Convert R code to JSON

json <- plot |>
e_inspect(
json = TRUE,
pretty = TRUE
)

# Get rid of "" around properties

json_output <- gsub('"(\w+)"\s*:', '\1:', json)

# Get rid of "" around formatter functions

json_output <- gsub('"(?=.*function)|(?<=;})"', '', json_output, perl = TRUE)

[JohnCoene]

Technically JSON should have these, you can leave them in its valid