Tags are a supplement to semver (e.g., v0.12) for organizing and labeling different versions of packages. In addition to being more human-readable, tags allow publishers to distribute their packages more effectively.
## 添加标签(tag)
To add a tag to a specific version of your package, use **npm dist-tag add <pkg>@<version> [<tag>]**. See the CLI docs for more information.
## 使用标签(tag)发布
By default, **npm publish** will tag your package with the **latest** tag. If you use the --tag flag, you can specify another tag to use. For example, the following will publish your package with the beta tag:
~~~
npm publish --tag beta
~~~
## 使用标签(tag)安装
Like npm publish, npm install <pkg> will use the latest tag by default. To override this behavior, use npm install <pkg>@<tag>. The following example will install the somepkg at the version that has been tagged with beta.
~~~
npm install somepkg@beta
~~~
## Caveats
Because dist-tags share the same namespace with semver, avoid using any tag names that may cause a conflict. The best practice is to avoid using tags beginning with a number or the letter "v".