Vue supports "templates" (both es5 string and single file component compiled), JSX, jade/pug, and render function. Svelte's single file components, similarly,

Vue supports "templates" (both es5 string and single file component compiled), JSX, jade/pug, and render function. Svelte's single file components, similarly, are not "dumb string templates". The compiler applies some correctness checking onto them at build time.