Javascript - npm (Node package manager)

Npm is the package manager that is packaged/installed with a node installation.

• Automatically, with a node installation.
• Manually: https://registry.npmjs.org/npm/-/npm-{VERSION}.tgz

To update npm self, execute the following statement:

npm install [email protected] -g

C:\Users\gerard\AppData\Roaming\npm\npm -> C:\Users\gerard\AppData\Roaming\npm\node_modules\npm\bin\npm-cli.js
C:\Users\gerard\AppData\Roaming\npm
`-- [email protected]
  +-- [email protected]
  +-- [email protected]
  +-- [email protected]
........................

npm -v

4.5.0

See NPM - Script

npm gets its config settings from:

• the command line,
• environment variables,
• and npmrc files.

The npm config command can be used to update and edit the contents of the user and global npmrc files.

Npm reads configuration from any environment variables beginning with NPM_CONFIG.

The .npmrc file is in your project’s root.

npm config get userconfig   # defaults to ~/.npmrc 

C:\Users\gerard\.npmrc

npm config get globalconfig # defaults to /usr/local/etc/npmrc 

C:\Users\gerard\AppData\Roaming\npm\etc\npmrc

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npm config get registry

https://registry.npmjs.org/

npm config get prefix

C:\Users\foo\AppData\Roaming\npm

Prior to [email protected], the node_modules dependency structure had its own node_modules folder with all of its dependencies specified in package.json.

node_modules
└─ foo
   ├─ index.js
   ├─ package.json
   └─ node_modules
      └─ bar
         ├─ index.js
         └─ package.json

With [email protected] the node_modules structure is now flat:

node_modules
├─ foo
|  ├─ index.js
|  └─ package.json
└─ bar
   ├─ index.js
   └─ package.json

• https://docs.npmjs.com/
• node package manager (npm).