webpack-bootstrap-ui-kit/src/js/main/main.js

import Events from "../_events";
import Consts from "../_consts";
import SpinnerUI from "./loading-spinner";

const MainUI = ((W) => {
  const NAME = "_main";
  const D = document;
  const BODY = D.body;

  console.info(
    `%cUI Kit ${UINAME} ${UIVERSION}`,
    "color:yellow;font-size:14px"
  );
  console.info(
    `%c${UIMetaNAME} ${UIMetaVersion}`,
    "color:yellow;font-size:12px"
  );
  console.info(
    `%chttps://github.com/a2nt/webpack-bootstrap-ui-kit by ${UIAUTHOR}`,
    "color:yellow;font-size:10px"
  );

  console.info(`%cENV: ${process.env.NODE_ENV}`, "color:green;font-size:10px");
  console.groupCollapsed("Events");
  Object.keys(Events).forEach((k) => {
    console.info(`${k}: ${Events[k]}`);
  });
  console.groupEnd("Events");

  console.groupCollapsed("Consts");
  Object.keys(Consts).forEach((k) => {
    console.info(`${k}: ${Consts[k]}`);
  });
  console.groupEnd("Events");

  console.groupCollapsed("Init");
  console.time("init");

  class MainUI {
    // first time the website initialization
    static init() {
      const ui = this;

      // store landing page state
      W.history.replaceState(
        {
          landing: W.location.href,
        },
        D.title,
        W.location.href
      );
      //

      ui.loaded();
    }

    // init AJAX components
    static loaded() {
      const ui = this;
      console.log(`${NAME}: loaded`);
    }
  }

  W.addEventListener(`${Events.LOADED}`, () => {
    MainUI.init();

    BODY.classList.add("loaded");
    SpinnerUI.hide();

    console.groupEnd("init");
    console.timeEnd("init");

    W.dispatchEvent(new Event(Events.LODEDANDREADY));
  });

  W.addEventListener(`${Events.AJAX}`, () => {
    MainUI.loaded();
  });

  W.MainUI = MainUI;

  return MainUI;
})(window);

export default MainUI;