What is purpose of the property "private" in package.json?

I'm learning nod开发者_运维知识库e.js and express, I am wondering what is the property "private" in ./package.json file used for?

From the NPM docs on package.json:

private

If you set "private": true in your package.json, then npm will refuse to publish it.

This is a way to prevent accidental publication of private repositories.

If you set "private": true in your package.json, then npm will refuse to publish it.

This is a way to prevent accidental publication of private repositories. If you would like to ensure that a given package is only ever published to a specific registry (for example, an internal registry), then use the publishConfig dictionary described below to override the registry config param at publish-time.

Also, you can read extra information in the documentation. Please find the link below.

https://docs.npmjs.com/cli/v7/configuring-npm/package-json#private