There is always something that doesn't fit either the use case or the aesthetic sense. > Why use js, For someone working with JS on the front end, the ability

There is always something that doesn't fit either the use case or the aesthetic sense. > Why use js, For someone working with JS on the front end, the ability to not only use the same language, but also the same libraries/modules/functions is very valuable. > which is slow? Not that slow, once a JS engine takes over.