init.inline.js.erb

if (window['jquery'] === undefined || window['highcharts'] === undefined) {
  <%
  all_libraries = dep_libraries.merge(additional_libraries)
  all_libraries.each do |name, path|
    basename = File.basename(path)
    contents = IO.read(File.join(js_dir, basename), mode: 'r:UTF-8')
  %>
    /* BEGIN <%= name %>.js */
<%= contents %>
    /* END <%= name %>.js */
  <% end %>

  var event = document.createEvent("HTMLEvents");
  event.initEvent("load_highcharts", false, false);
  window.dispatchEvent(event);
  console.log("Finish loading highchartsjs");
}