As one of the hottest topics for developers, the discussions have never stopped. On LinkedIn and Facebook, lots of people put their job title as a full stack developer. Besides, it seems that the “Full Stack” topic has already become a new job trend. An article on Medium has discussed the full stack designer getting both praise and blame. Some people think that the full stack is just a title, what he/she should focus on is the real personal ability and technology. Essentially, I think the discussion about the full stack is also a kind of argument relating to the all-rounder and expert in the IT industry, and debate on the depth and breadth of development skills. You can’t have your cake and eat it too. While the full stack developers and full stack designers seem like they are challenging this possibility. Because their horizontal skills tree gives them the ability to both have and eat the cake. There is another saying is that jack of all trades, but master of none. So it’s necessary to think about how to become a real full stack developer but not an empty title.