除了可伸缩性之外，使用node.js的一些架构原因是什么？

The most common theme I read about why to use node.js is for high scalability due to it's evented, non-blocking I/O model. I'm trying to understand other non-scalability uses cases (and aside from being used as a general server-side javascript engine).The most common theme I read about why to use n