[city41]

I agree with the author, and think this is important. But I also want to point out JS enables one to build interesting sites without a backend, by relying on data from third party APIs. Being able to quickly do "mashup" sites like this can be pretty great. The time it takes to build them is usually quite short, and the hosting is almost always free.

As an example, I am currently building this site, https://mi-cov.com, which I can host for free since the data comes from a government API. (The site is not done yet, I'm aware of the various issues it has)