npm中dependencies的版本区间

dependencies - https://www.npmjs.org/doc/files/package.json.html#dependencies

• version Must match version exactly
• >version Must be greater than version
• >=version etc
• <version
• <=version
• ~version “Approximately equivalent to version” See semver(7)
• ^version “Compatible with version” See semver(7)
• 1.2.x 1.2.0, 1.2.1, etc., but not 1.3.0
• http://... See ‘URLs as Dependencies’ below
• * Matches any version
• "" (just an empty string) Same as *
• version1 - version2 Same as >=version1 <=version2.
• range1 || range2 Passes if either range1 or range2 are satisfied.
• git... See ‘Git URLs as Dependencies’ below
• user/repo See ‘GitHub URLs’ below

For example, these are all valid:

{ "dependencies" :
  { "foo" : "1.0.0 - 2.9999.9999"
  , "bar" : ">=1.0.2 <2.1.2"
  , "baz" : ">1.0.2 <=2.3.4"
  , "boo" : "2.0.1"
  , "qux" : "<1.0.0 || >=2.3.1 <2.4.5 || >=2.5.2 <3.0.0"
  , "asd" : "http://asdf.com/asdf.tar.gz"
  , "til" : "~1.2"
  , "elf" : "~1.2.3"
  , "two" : "2.x"
  , "thr" : "3.3.x"
  }
}

URLs as Dependencies

Git URLs as Dependencies

GitHub URLs

semver - https://www.npmjs.org/doc/misc/semver.html#Ranges