From allowJs to useDefineForClassFields the TSConfig reference includes information about all of the active compiler flags setting up a TypeScript project.| www.typescriptlang.org
Using JSX with TypeScript| www.typescriptlang.org
When rendering a page, Astro provides a runtime API specific to the current render. This includes useful information such as the current page URL as well as APIs to perform actions like redirecting to another page.| Docs