There are libraries you can use to modernize without adopting a full framework. I like lit-html https://lit-html.polymer-project.org/ https://lit-html.polymer-p

There are libraries you can use to modernize without adopting a full framework. I like lit-html https://lit-html.polymer-project.org/ https://lit-html.polymer-project.org/ There is a more complete framework that goes with that, lit-element, but you can get most of the benefits using lit-html in your own framework.