TYPO3 v9 has reached its end-of-life September 30th, 2021 and is not maintained by the community anymore. Looking for a stable version? Use the version switch on the top left.
You can order Extended Long Term Support (ELTS) here: TYPO3 ELTS.
RequireJS in the TYPO3 Backend¶
The complete documentation about RequireJS was inspired by the blog post of Andreas Fernandez.