I noticed in your first code example you use a mixture of leading a method with an _ and some without. Ex. navigateToContact vs _hasUnsavedChanges and _saveChanges. I read somewhere that a best practice is to always prefix custom methods with _ to differentiate from React core methods. What're your feelings on that?
Oh this is definitely a personal preference thing, but our convention is this: private instance methods start with an underscore, public instance methods have no underscore. Public ones have no syntactic difference from the core life cycle methods but that's ok to me because they're all easy to remember. Btw we use public instance methods very sparingly, basically as a last resort when all else fails.
