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简化npm包管理:base-package-json模块详解

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该包设计得易于扩展和修改,特别适合于代码生成器使用。通过npm安装该包后,开发者可以通过引入并使用该模块来创建一个新的package.json文件。在用法示例中,展示了如何通过pipe方法将base-package-json的输出传递给through2插件,进而对生成的package.json文件对象进行操作,比如添加依赖项(如rimraf模块)和描述信息。" 详细说明如下: 1. package.json基础:package.json是每个使用npm管理的JavaScript项目的核心文件,它描述了项目的元数据和配置。基础属性包括项目名称(name)、版本(version)、依赖(dependencies)等。 2. npm安装和使用:npm是Node.js的包管理器,用于安装、共享、发布和管理代码。在示例中,通过命令`npm install base-package-json`来安装该模块。安装完成后,通过`require`方法引入到项目中使用。 3. 代码生成器的友好性:base-package-json设计得简洁,方便自定义和扩展,这对于自动化工具来说非常重要。代码生成器可以利用该模块快速生成一个基本的package.json文件,然后在此基础上进行必要的修改和扩展。 4. 使用require方法引入模块:JavaScript中的require方法用于引入模块。在本例中,引入了base-package-json模块和through2模块,这两个模块分别用于创建和操作流。 5. pipe方法和through2:在Node.js中,pipe方法用于将一个流的输出传递给另一个流的输入,这里通过pipe方法将base-package-json生成的package.json内容传递给through2处理。through2是一个简单的转换流,支持对象模式,可以通过回调函数对流中的数据进行处理。在示例中,通过through2插件为生成的package.json对象添加了依赖(rimraf模块)和描述(My great description)。 6. package.json中的依赖和描述属性:在示例中添加的rimraf依赖是一个用于递归删除文件和目录的npm包,版本被设置为'2.4.3'。描述属性则用于提供项目简短的描述,有助于用户快速了解项目用途。 7. 扩展性和自定义:虽然base-package-json提供的功能基础,但它允许开发者自定义和扩展package.json的内容。开发者可以在生成的文件基础上添加更多的属性,比如scripts、author、license等,以满足具体项目的需求。 通过这些知识点,我们可以了解到在开发Node.js项目时,如何通过一个基础模块快速搭建起一个可用的package.json文件,并进行相应的自定义扩展。这种快速搭建方式特别适合于项目初期阶段,当项目的其他细节还未完全确定时,能够快速开始编码工作。同时,该模块也方便开发者在项目模板生成、脚手架工具开发等场景中使用,提高开发效率。

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[I 2025-03-26 19:56:32.064 ServerApp] Extension package aext_assistant took 0.6549s to import [I 2025-03-26 19:56:32.075 ServerApp] ****************** ENVIRONMENT [Panels] Environment.PRODUCTION ****************** [I 2025-03-26 19:56:32.077 ServerApp] ****************** ENVIRONMENT [Panels] Environment.PRODUCTION ****************** [I 2025-03-26 19:56:32.152 ServerApp] --> Alembic Config: {'db_conn_url': 'sqlite:///C:\\Users\\杨阳\\Documents\\anaconda_projects\\db\\project_filebrowser.db', 'db_path': 'C:\\Users\\杨阳\\Documents\\anaconda_projects\\db\\project_filebrowser.db'} [I 2025-03-26 19:56:32.152 ServerApp] Default dir: C:\Users\杨阳\Documents. Running chdir... [I 2025-03-26 19:56:32.152 ServerApp] Checking for database file @ C:\Users\杨阳\Documents\anaconda_projects\db\project_filebrowser.db [I 2025-03-26 19:56:32.152 ServerApp] Database file already exists [I 2025-03-26 19:56:32.160 ServerApp] Migrations executed [I 2025-03-26 19:56:32.160 ServerApp] Checking project configuration: C:\Users\杨阳\Documents. Running chdir... [I 2025-03-26 19:56:32.318 ServerApp] Extension package aext_toolbox took 0.2401s to import [W 2025-03-26 19:56:32.325 ServerApp] A `_jupyter_server_extension_points` function was not found in jupyter_lsp. Instead, a `_jupyter_server_extension_paths` function was found and will be used for now. This function name will be deprecated in future releases of Jupyter Server. [W 2025-03-26 19:56:32.365 ServerApp] A `_jupyter_server_extension_points` function was not found in notebook_shim. Instead, a `_jupyter_server_extension_paths` function was found and will be used for now. This function name will be deprecated in future releases of Jupyter Server. [I 2025-03-26 19:56:32.893 ServerApp] Extension package panel.io.jupyter_server_extension took 0.5201s to import [I 2025-03-26 19:56:32.893 ServerApp] aext_assistant | extension was successfully linked. [I 2025-03-26 19:56:32.893 ServerApp] aext_core | extension was successfully linked. [I 2025-03-26 19:56:

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(R4.4.1) zhengyeyang@YuLab103:/mnt/public$ conda install phylogram Channels: - conda-forge - bioconda - defaults Platform: linux-64 Collecting package metadata (repodata.json): done Solving environment: failed PackagesNotFoundError: The following packages are not available from current channels: - phylogram Current channels: - https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/conda-forge - https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/bioconda - defaults - https://repo.anaconda.com/pkgs/main - https://repo.anaconda.com/pkgs/r To search for alternate channels that may provide the conda package you're looking for, navigate to https://anaconda.org and use the search bar at the top of the page. (R4.4.1) zhengyeyang@YuLab103:/mnt/public$ conda install -c conda-forge phylogram Channels: - conda-forge - bioconda - defaults Platform: linux-64 Collecting package metadata (repodata.json): done Solving environment: failed PackagesNotFoundError: The following packages are not available from current channels: - phylogram Current channels: - https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/conda-forge - https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/bioconda - defaults - https://repo.anaconda.com/pkgs/main - https://repo.anaconda.com/pkgs/r To search for alternate channels that may provide the conda package you're looking for, navigate to https://anaconda.org and use the search bar at the top of the page.

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解释以下命令,谢谢:(base) C:\Users\86188>conda install pytorch==1.13.1 torchvision==0.14.1 torchaudio==0.13.1 cpuonly Collecting package metadata (current_repodata.json): done Solving environment: failed with initial frozen solve. Retrying with flexible solve. Collecting package metadata (repodata.json): done Solving environment: failed with initial frozen solve. Retrying with flexible solve. PackagesNotFoundError: The following packages are not available from current channels: - pytorch==1.13.1 - cpuonly - torchvision==0.14.1 - torchaudio==0.13.1 Current channels: - http://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/msys2/win-64 - http://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/msys2/noarch - http://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/conda-forge/win-64 - http://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/conda-forge/noarch - http://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/win-64 - http://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/noarch - https://repo.anaconda.com/pkgs/main/win-64 - https://repo.anaconda.com/pkgs/main/noarch - https://repo.anaconda.com/pkgs/r/win-64 - https://repo.anaconda.com/pkgs/r/noarch - https://repo.anaconda.com/pkgs/msys2/win-64 - https://repo.anaconda.com/pkgs/msys2/noarch To search for alternate channels that may provide the conda package you're looking for, navigate to https://anaconda.org and use the search bar at the top of the page.

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简化npm包管理:base-package-json模块详解
(7个子文件)
README.md 2KB
test.js 774B
package.json 843B
LICENSE 1KB
.travis.yml 155B
index.js 630B
.gitignore 54B
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