I've done a bit of work with Rails' js tools. I hear they're getting better in 5, but I haven't paid attention to them in a while. Last I looked, they were gr

I've done a bit of work with Rails' js tools. I hear they're getting better in 5, but I haven't paid attention to them in a while. Last I looked, they were great if all you wanted to do was take a basic html form and make it act pretty much the same but actually submit via ajax. If you wanted to do anything more complex, it got tricky.