View package on a remote server version information
npm view webpack version // View npm package webpack on the latest version of the server
npm view webpack versions // View webpack package on the server all the version information
npm info webpack // and npm view webpack version command similar but more comprehensive information
Check locally installed version of the package information
LS WebPACK npm // check the version information package pkg in a directory ------ Note that this command must be executed in a project npm LS WebPACK -g // Check local global package pkg installed version information
npm syntax version number
abc npm version number to manage the installation package, a version number is reached, there is a significant change api, are generally not backward compatible, b is the minor version number, new features, backward compatible, c is the patch number, usually fix some bug. npm the installation package allows some special notation version range of installation, such as:
~ Abc: take the value of the latest version of c, a and b unchanged
^ abc: Take b and c are the latest version, a remains unchanged