how to manage version of npm code example

Example: npm version notation

1.2.3 => 1.2.3 (Matching exactly same version)
~1.2.3 => >=1.2.3 && < 1.3.0 (Matching minor version)
^1.2.3 => >=1.2.3 && < 2.0.0 (Matching major version)