We appreciate your interest in publishing a course on Udemy. While we don't have immediate plans to add additional languages such as TypeScript to the coding exercises feature, we will share this feedback with our product team, so they're aware of it when future iterations of the feature are made.
For steps on creating coding exercises and a list of the coding languages Udemy supports, please refer to this article.
I'm sorry I don't have better news. We hope you still consider publishing a course on Udemy.
If you have additional questions, please let us know!😊