JSFiddle - React, Tailwind, and code Playground

HTML

<div id="csv">item 1,item 2,item 3,item 4</div>

JavaScript

$(function(){
  $csv = $("#csv")
  items = $csv.text().split(",")
  $csv.replaceWith($("<ul/>"))
  items.forEach(function(item){
      $("ul").append("<li>"+item+"</li>")
  })
})