What does the at sign, or '@', mean as a prefix to an angular module as a package name?

问题

In my `package.json' file, it seems that all the Angular depedencies are prefixed by @. What does this mean? E.g.

"dependencies": {
    "@angular/common": "2.0.0-rc.5",

Why not just as below, with no @?

"dependencies": {
    "angular/common": "2.0.0-rc.5",

回答1:

npm has two types of modules:

• Global modules - npm install mypackage
• Scoped modules - npm install @myorg/mypackage

Scopes are a way of grouping related packages together, and also affect a few things about the way npm treats the package.

来源：https://stackoverflow.com/questions/39050406/what-does-the-at-sign-or-mean-as-a-prefix-to-an-angular-module-as-a-packag