node. JS Query Express version number

Just start learning node. js and want to start learning Express 4 directly, enter EXPRESS-V directly on the command line and query the version number of the installed Express. The results come out in such a heap as:

The-v command becomes the Add view engine, and the-v command has disappeared, only--version is the View Express version number, it should be express 4 +. Input Express--version, and sure enough output such as:

node. JS Query Express version number