Displays version information of the currently installed Yarn, Node.js, and its dependencies.

yarn versions
  1. yarn versions
  1. yarn versions v0.24.5
  2. { http_parser: '2.7.0',
  3.   node: '7.10.0',
  4.   v8: '5.5.372.43',
  5.   uv: '1.11.0',
  6.   zlib: '1.2.11',
  7.   ares: '1.10.1-DEV',
  8.   modules: '51',
  9.   openssl: '1.0.2k',
  10.   icu: '58.2',
  11.   unicode: '9.0',
  12.   cldr: '30.0.3',
  13.   tz: '2016j' }
  14. ✨  Done in 0.04s.

原文: https://yarnpkg.com/zh-Hans/docs/cli/versions