Bringing two concepts closer, especially visually will result in a better developer experience - Thus merging html and js into a single file, component, class /

Bringing two concepts closer, especially visually will result in a better developer experience - Thus merging html and js into a single file, component, class / object and sequential logic was really the turning point to build more complex web apps. This reminds me of the excellent talk by bret victor https://www.youtube.com/watch?v=PUv66718DII https://www.youtube.com/watch?v=PUv66718DII