Right! And a lot of projects have a linter in place that runs in continuous integration (travis, etc) that you can see in the PR or just locally. In Babel we u

Right! And a lot of projects have a linter in place that runs in continuous integration (travis, etc) that you can see in the PR or just locally. In Babel we use ESLint for this https://github.com/babel/babel/blob/master/Makefile#L20-L27 https://github.com/babel/babel/blob/master/Makefile#L20-L27