npm软件安装包

Read the if you are starting out with npm, it’s going to go in a lot of the basic details of it.

如果您从npm入手，请阅读 ，其中将包含许多基本细节。

When you install a package using npm (or ), you can perform 2 types of installation:

使用npm (或 )安装软件包时，可以执行两种安装类型：

• a local install
  本地安装
• a global install
  全局安装

By default, when you type an npm install command, like:

默认情况下，当您键入npm install命令时，例如：

npm install lodash

the package is installed in the current file tree, under the node_modules subfolder.

该软件包安装在当前文件树的node_modules子文件夹下。

As this happens, npm also adds the lodash entry in the dependencies property of the present in the current folder.

发生这种情况时， npm还会在当前文件夹中存在的的dependencies属性中添加lodash条目。

A global installation is performed using the -g flag:

使用-g标志执行全局安装：

npm install -g lodash

When this happens, npm won’t install the package under the local folder, but instead, it will use a global location.

发生这种情况时，npm不会将软件包安装在本地文件夹下，而是使用一个全局位置。

Where, exactly?

到底在哪里？

The npm root -g command will tell you where that exact location is on your machine.

npm root -g命令将告诉您确切位置在您计算机上的哪个位置。

On macOS or Linux this location could be /usr/local/lib/node_modules. On Windows it could be C:\Users\YOU\AppData\Roaming\npm\node_modules

在macOS或Linux上，此位置可能是/usr/local/lib/node_modules 。 在Windows上，可能是C:\Users\YOU\AppData\Roaming\npm\node_modules

If you use nvm to manage Node.js versions, however, that location would differ.

但是，如果使用nvm管理Node.js版本，则该位置将有所不同。

I for example use nvm and my packages location was shown as /Users/flavio/.nvm/versions/node/v8.9.0/lib/node_modules.

例如，我使用nvm ，我的软件包位置显示为/Users/flavio/.nvm/versions/node/v8.9.0/lib/node_modules 。

翻译自:

npm软件安装包