你把Babel和Webpack放在devDependencies或Dependencies中吗？

Question

我是npm的新手，并不真正了解应该依赖于devDependencies的内容。我知道，对于测试库，他们应该进入dev，但对于像babel和webpack这样的东西呢？他们是不是也应该在dev中，因为他们只是用来将es6和JSX转换成vanilla JS？我的理解是，当你部署到heroku时，它已经用必要的库进行转换，所以不需要在生产中托管它们吗？

  "dependencies": {
    "babel-core": "^6.7.7",
    "babel-eslint": "^6.0.4",
    "babel-loader": "^6.2.4",
    "babel-plugin-react-transform": "^2.0.2",
    "babel-plugin-transform-object-rest-spread": "^6.6.5",
    "babel-plugin-transform-react-display-name": "^6.5.0",
    "babel-polyfill": "^6.7.4",
    "babel-preset-es2015": "^6.6.0",
    "babel-preset-react": "^6.5.0",
    "bootstrap": "^3.3.7",
    "css-loader": "^0.23.1",
    "es6-promise": "^3.2.1",
    "eslint": "^2.9.0",
    "eslint-plugin-babel": "^3.2.0",
    "eslint-plugin-react": "^5.0.1",
    "express": "^4.13.4",
    "extract-text-webpack-plugin": "^1.0.1",
    "file-loader": "^0.9.0",
    "lodash": "^4.15.0",
    "react": "^15.0.2",
    "react-addons-css-transition-group": "^15.0.2",
    "react-dom": "^15.0.2",
    "react-redux": "^4.4.5",
    "react-transform-catch-errors": "^1.0.2",
    "react-transform-hmr": "^1.0.4",
    "redbox-react": "^1.2.3",
    "redux": "^3.5.2",
    "redux-form": "^6.1.0",
    "rimraf": "^2.5.2",
    "style-loader": "^0.13.1",
    "webpack-dev-middleware": "^1.6.1",
    "webpack-hot-middleware": "^2.10.0"
  },
  "devDependencies": {
    "babel-register": "^6.9.0",
    "chai": "^3.5.0",
    "mocha": "^2.5.3",
    "sinon": "^1.17.4",
    "webpack": "^1.13.2"
  }

Answer 1

babel和webpack包将进入devDependencies部分，因为这些包用于将代码转换并捆绑到bundle.js＆etc文件中的vanilla javascript中。

在生产中，您将从bundle.js构建/生成代码运行代码，不再需要这些依赖项。

Answer 2

尽管基本上每个人都说，我会提供一个理智......它真的很简单：

您的项目是否会被另一个项目进行npm installed？ a.k.a你在创作一个npm模块吗？它最终将在另一个项目package.json？

没有？

然后把所有东西放在dependencies。

是？

• dependencies：您希望项目的下游消费者和项目开发人员安装的内容：
• peerDependencies：您的下游用户需要确保已安装的东西
• bundleDependencies：您的下游用户需要的东西，并且不需要单独安装，因为当您使用npm publish时，这些将与您的包“捆绑”。
• optionalDependencies：好的东西，但没有不会导致致命的错误
• devDependencies：仅在处理项目时使用的东西。
• optionalDependencies：好的东西，但没有不会导致致命的错误

缺点是：模块不会以不同的方式神奇地安装。他们要么安装，要么不安装。

Answer 3

Dev依赖是仅用于开发服务器的，它们是devDepedency：所有未在源代码中使用或导入的包都是devDependencies

"babel-cli": "^6.26.0",
"babel-core": "^6.26.0",
"babel-loader": "^7.1.4",
"babel-preset-env": "^1.6.1",
"babel-preset-react": "^6.24.1",
"clean-webpack-plugin": "^0.1.19",
"copy-webpack-plugin": "^4.5.1",
"css-loader": "^0.28.11",
"file-loader": "^1.1.11",
"html-webpack-plugin": "^3.2.0",
"mini-css-extract-plugin": "^0.4.0",
"node-sass": "^4.8.3",
"optimize-css-assets-webpack-plugin": "^4.0.0",
"prop-types": "^15.6.1",
"sass-loader": "^7.0.1",
"style-loader": "^0.21.0",
"uglifyjs-webpack-plugin": "^1.2.5",
"webpack": "^4.6.0",
"webpack-cli": "^3.1.1",
"webpack-dev-server": "^3.1.9"