The JavaScript Package Registry
References
To resolve packages by name and version, npm talks to a registry website that implements the CommonJS Package Registry specification for reading package info.
npm is configured to use the npm public registry at https://registry.npmjs.org by default. Use of the npm public registry is subject to terms of use available at https://docs.npmjs.com/policies/terms.
You can configure npm to use any compatible registry you like, and even run your own registry. Use of someone else's registry may be governed by their terms of use.
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The registry URL used is determined by the scope of the package (see scope) . If no scope is specified, the default registry is used, which is supplied by the registry config parameter. ……
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Yes.
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Set "private": true in your package.json to prevent it from being published at all, or "publishConfig":{"registry":"http://my-internal-registry.local"} to force it to be published only to your internal/private registry.
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