I think the web is getting better in this regard. Since the introduction of emscripten and asm.js there have been some improvements to the tooling and runtime t

I think the web is getting better in this regard. Since the introduction of emscripten and asm.js there have been some improvements to the tooling and runtime to make it so you can just write your app in C or C++ without really thinking about JavaScript. It's only a matter of time before other languages can have the same level of support.