In theory, that's what template languages like jinja, liquid and twig are for. But as you can see, there's n+1 standards for it, and in practice none of them h

In theory, that's what template languages like jinja, liquid and twig are for. But as you can see, there's n+1 standards for it, and in practice none of them has a Javascript implementation good enough for productive use. So it's more a "what if?" scenario, had Angular/React/Vue not taken off.