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Yes. This is how VanJS works. Code with VanJS is often more concise compared to equivalent code with React.

Ah ok! Very cool. Maybe I'm still missing a tiny piece of syntax? I don't see any output when I run that code in the fiddle

Ah.. you need a binding function to wrap the state-derived content into a reactive UI element, see: https://vanjs.org/tutorial#state-derived-child. I made the change in your code to make it work: https://jsfiddle.net/rkfmpx06/1/

Oh! I understand, thanks for walking through that. Yes very terse compared to the equivalent react :)