sort sunburst alphabetically

Readme.md

https://twitter.com/emhrt_/status/905941755878563840 asks how to sort sunburstR htmlwidget alphabetically. This is an attempt at providing an answer.

code.R

library(sunburstR)

sequence_json <- jsonlite::fromJSON(
  system.file("examples/visit-sequences.json",package="sunburstR"),
  simplifyDataFrame = FALSE
)

sunburst(
  sequence_json,
  sortFunction = htmlwidgets::JS(
"
// https://stackoverflow.com/questions/37064650/how-to-get-d3-js-tree-layout-to-sort-nodes-alphabetically
function(a,b) {
  return a.data.name.toLowerCase().localeCompare(b.data.name.toLowerCase());
}
"    
  )
)