ready.js

/*!
 * domready (c) Dustin Diaz 2014 - License MIT
 * ie10 fix - Mikael Kristiansson 2019
 */
!(function(name, definition) {
  if (typeof module != "undefined") module.exports = definition();
  else if (typeof define == "function" && typeof define.amd == "object")
    define(definition);
  else this[name] = definition();
})("domready", function() {
  var ie10 = false;
  if (navigator.appVersion.indexOf("MSIE 10") !== -1) {
    ie10 = true;
  }

  var fns = [],
    listener,
    doc = typeof document === "object" && document,
    hack = ie10
      ? doc.documentElement.doScroll("left")
      : doc.documentElement.doScroll,
    domContentLoaded = "DOMContentLoaded",
    loaded =
      doc && (hack ? /^loaded|^c/ : /^loaded|^i|^c/).test(doc.readyState);

  if (!loaded && doc)
    doc.addEventListener(
      domContentLoaded,
      (listener = function() {
        doc.removeEventListener(domContentLoaded, listener);
        loaded = 1;
        while ((listener = fns.shift())) listener();
      })
    );

  return function(fn) {
    loaded ? setTimeout(fn, 0) : fns.push(fn);
  };
});