https://hyperscript.org https://hyperscript.org and its async transparency in particular: https://hyperscript.org/docs/#async https://hyperscript.org/docs/#as

https://hyperscript.org https://hyperscript.org and its async transparency in particular: https://hyperscript.org/docs/#async https://hyperscript.org/docs/#async hyperscript isn't a general, full-stack programming language though, it's focused on pure front end stuff, sort of a modern jQuery replacement.