从命令行向 package.json 文件添加依赖项

要从命令行将 dependencies 和 devDependencies 添加到 package.json 文件，您可以使用 --save-prod 标志用于 dependencies（npm install 的默认行为）或 --save-dev 标志用于 devDependencies 将它们安装在包的根目录中。

To add dependencies and devDependencies to a package.json file from the command line, you can install them in the root directory of your package using the --save-prod flag for dependencies (the default behavior of npm install) or the --save-dev flag for devDependencies.

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npm install <package-name> [--save-prod]

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npm install <package-name> --save-dev