This is weird. I would definitely fail your interview. Yet, at the same time, I've shipped over a dozen products, dozens of releases, consistently, to hundreds of thousands (if not millions) of people. I have a solid track record of clean, bug-free, efficient code. In 14 years of development, I've never had a bad review, and I've consistently ranked on the 'A-track' at all companies that I have worked for. I have low ego, work well with others, am a great teacher. Yet, my top priority is the craftsmanship of software: understanding user requirements and shipping great products that meet those requirements. My priority isn't being able to describe the intricacies of closures.