To start development version of the frontend run npm run devStart in main folder.
By default logging level is set to warning. You can easily change it in the code or directly in the browser console:
log.setLevel(log.levels.DEBUG);
For more details see loglevel package web page.
See tsconfig.json for the list of backend files that are included in frontend code base.
These files can be directly imported.
Documentation of widget basic components (exposed using Stage.Basic global) is available in
Widget Components Reference.