require('jquery') vs require('semantic-ui-css')，只有一个适用于使用 webpack 进行反应编程
require('jquery') vs require('semantic-ui-css'), only one works in react programming with webpack
在使用 React 和（我使用 webpack）编程时，我注意到
require('jquery')
在 npm install jquery --save 但
之后有效
require('semantic-ui-css')
不在npm install semantic-ui-css --save之后。
webpack 是如何做到 jquery 可以像那样导入，而 semantic-ui-css 不能。
换句话说，webpack 如何将给定名称解析为要加载的模块？
查看各自的 package.json 文件 - the jQuery one has the main property set to dist/jquery.js, whereas the semantic-ui-css one does not have it at all. Whatever file is set there is what Node/Webpack will provide when you import the package. If it's not there, you can't import the package by name - you either have to specify a particular file (e.g. semantic-ui-css/semantic.css) or use Webpack's module aliasing functionality.
在使用 React 和（我使用 webpack）编程时，我注意到
require('jquery')
在 npm install jquery --save 但
require('semantic-ui-css')
不在npm install semantic-ui-css --save之后。
webpack 是如何做到 jquery 可以像那样导入，而 semantic-ui-css 不能。
换句话说，webpack 如何将给定名称解析为要加载的模块？
查看各自的 package.json 文件 - the jQuery one has the main property set to dist/jquery.js, whereas the semantic-ui-css one does not have it at all. Whatever file is set there is what Node/Webpack will provide when you import the package. If it's not there, you can't import the package by name - you either have to specify a particular file (e.g. semantic-ui-css/semantic.css) or use Webpack's module aliasing functionality.