I disagree about JSLint. I can argue that things like failing with fatal error when you don't move all your variable declaration to the top of the function is a

I disagree about JSLint. I can argue that things like failing with fatal error when you don't move all your variable declaration to the top of the function is a bad idea. In the end, all lint programs are just tools to make your life easier. And you should never blindly rely on any of them. Disclaimer: I am maintainer of JSHint, a fork of JSLint.