问题描述
我现在正在学习 React,我遇到了“React CSS Modules”的概念。我喜欢 CSS 范围的想法,我想在我的代码中使用它。我发现 babel-plugin-react-css-modules 这个插件可以让代码看起来更干净。但是,我在代码中设置它时遇到了一些问题。
这是我的 .babelrc
文件
{
"presets": ["@babel/preset-env","@babel/preset-react"],"plugins": [
[
"babel-plugin-react-css-modules",{
"webpackHotModuleReloading": true,"autoResolveMultipleImports": true
}
]
]
}
我的webpack.config.js
:
const path = require("path");
const HtmlWebpackPlugin = require("html-webpack-plugin");
module.exports = {
entry: "./src/index.js",output: {
path: path.join(__dirname,"/dist"),filename: "index_bundle.js",},module: {
rules: [
{
test: /\.m?js$/,exclude: /(node_modules|bower_components)/,use: {
loader: "babel-loader",options: {
presets: ["@babel/preset-env"],cacheDirectory: true,{
test: /\.css$/i,use: [
"style-loader",{
loader: "css-loader",//generating unique classname
options: {
importLoaders: 1,// if specifying more loaders
modules: true,sourceMap: false,localIdentName:
"[path]___[name]__[local]___[hash:base64:5]",//babel-plugin-css-module format
//localIdentName: "[path][name]__[local]" //recommended settings by cssloader#local-scope,this option generate unique classname for compiled css
},],plugins: [
new HtmlWebpackPlugin({
template: "./src/index.html",}),};
还有我的package.json
:
{
"name": "react-webpack","version": "1.0.0","description": "","private": true,"scripts": {
"start": "npx webpack server --mode development --open --hot","build": "webpack --mode production"
},"author": "","license": "ISC","dependencies": {
"babel-plugin-react-css-modules": "^5.2.6","react": "^17.0.2","react-dom": "^17.0.2"
},"devDependencies": {
"@babel/core": "^7.14.0","@babel/preset-env": "^7.14.1","@babel/preset-react": "^7.13.13","babel-loader": "^8.2.2","css-loader": "^5.2.4","html-webpack-plugin": "^5.3.1","postcss-scss": "^3.0.5","style-loader": "^2.0.0","webpack": "^5.36.2","webpack-cli": "^4.7.0","webpack-dev-server": "^3.11.2"
}
}
如果我执行 npm start
,我会收到错误:
modules by path ./src/css/*.css 1.42 KiB
./src/css/styles.css 1.38 KiB [built] [code generated]
./node_modules/css-loader/dist/cjs.js??ruleSet[1].rules[1].use[1]!./src/css/styles.css 39 bytes [built] [code generated] [1 error]
./src/index.js 194 bytes [built] [code generated]
./src/components/App.js 388 bytes [built] [code generated]
ERROR in ./src/css/styles.css (./node_modules/css-loader/dist/cjs.js??ruleSet[1].rules[1].use[1]!./src/css/styles.css)
Module build Failed (from ./node_modules/css-loader/dist/cjs.js):
ValidationError: Invalid options object. CSS Loader has been initialized using an options object that does not match the API schema.
- options has an unkNown property 'localIdentName'. These properties are valid:
object { url?,import?,modules?,sourceMap?,importLoaders?,esModule? }
解决方法
babel-plugin-react-css-modules 严重过时且未维护; 但是我维护了它的最新分支 @dr.pogodin/babel-plugin-react-css-modules :)