eslint also has auto-fix support to some extent. I don't know how far JSCS pushes it though. The biggest thing is that whenever something new pops up, you can

eslint also has auto-fix support to some extent. I don't know how far JSCS pushes it though. The biggest thing is that whenever something new pops up, you can get an eslint plugin to lint it (eg: it took a wh ile for jshint to be able to take JSX or even just ES6 syntax, while ESLint got plugins for it pretty quick). I think (don't quote me) that eslint is starting to have pretty cool Flow hooks, too.