JJUG 2014 fall 「私がTDD出来ないのはどう考えてもお前らが悪い！」This document discusses Yarn and its advantages over npm. It notes that Yarn uses yarn.lock files instead of npm-shrinkwrap.json files to lock down dependency versions. Yarn is also described as being faster, able to work offline by caching dependencies, and potentially more secure than npm with features like flat mode and module folders. The document suggests Yarn may handle dependencies and devD
