create-react-app 基础上配置优化
版本详情：
{
"name": "react-study",
"version": "0.1.0",
"private": true,
"dependencies": {
"@babel/core": "7.12.3",
"@pmmmwh/react-refresh-webpack-plugin": "0.4.3",
"@svgr/webpack": "5.5.0",
"@testing-library/jest-dom": "^5.14.1",
"@testing-library/react": "^11.2.7",
"@testing-library/user-event": "^12.8.3",
"@typescript-eslint/eslint-plugin": "^4.5.0",
"@typescript-eslint/parser": "^4.5.0",
"antd": "^4.16.12",
"axios": "^0.21.1",
"babel-eslint": "^10.1.0",
"babel-jest": "^26.6.0",
"babel-loader": "8.1.0",
"babel-plugin-named-asset-import": "^0.3.7",
"babel-preset-react-app": "^10.0.0",
"bfj": "^7.0.2",
"camelcase": "^6.1.0",
"case-sensitive-paths-webpack-plugin": "2.3.0",
"classnames": "^2.3.1",
"css-loader": "4.3.0",
"dotenv": "8.2.0",
"dotenv-expand": "5.1.0",
"eslint": "^7.11.0",
"eslint-config-react-app": "^6.0.0",
"eslint-plugin-flowtype": "^5.2.0",
"eslint-plugin-import": "^2.22.1",
"eslint-plugin-jest": "^24.1.0",
"eslint-plugin-jsx-a11y": "^6.3.1",
"eslint-plugin-react": "^7.21.5",
"eslint-plugin-react-hooks": "^4.2.0",
"eslint-plugin-testing-library": "^3.9.2",
"eslint-webpack-plugin": "^2.5.2",
"file-loader": "6.1.1",
"fs-extra": "^9.0.1",
"html-webpack-plugin": "4.5.0",
"identity-obj-proxy": "3.0.0",
"jest": "26.6.0",
"jest-circus": "26.6.0",
"jest-resolve": "26.6.0",
"jest-watch-typeahead": "0.6.1",
"mini-css-extract-plugin": "0.11.3",
"optimize-css-assets-webpack-plugin": "5.0.4",
"pnp-webpack-plugin": "1.6.4",
"postcss-flexbugs-fixes": "4.2.1",
"postcss-loader": "3.0.0",
"postcss-normalize": "8.0.1",
"postcss-preset-env": "6.7.0",
"postcss-safe-parser": "5.0.2",
"prompts": "2.4.0",
"react": "^17.0.2",
"react-app-polyfill": "^2.0.0",
"react-dev-utils": "^11.0.3",
"react-dom": "^17.0.2",
"react-refresh": "^0.8.3",
"react-router-dom": "^5.2.0",
"resolve": "1.18.1",
"resolve-url-loader": "^3.1.2",
"sass-loader": "^10.0.5",
"semver": "7.3.2",
"style-loader": "1.3.0",
"terser-webpack-plugin": "4.2.3",
"ts-pnp": "1.2.0",
"url-loader": "4.1.1",
"web-vitals": "^1.1.2",
"webpack": "4.44.2",
"webpack-dev-server": "3.11.1",
"webpack-manifest-plugin": "2.2.0",
"workbox-webpack-plugin": "5.1.4"
},
"scripts": {
"start": "node scripts/start.js",
"build": "node scripts/build.js",
"test": "node scripts/test.js"
},
"eslintConfig": {
"extends": [
"react-app",
"react-app/jest"
]
},
"browserslist": {
"production": [
">0.2%",
"not dead",
"not op_mini all"
],
"development": [
"last 1 chrome version",
"last 1 firefox version",
"last 1 safari version"
]
},
"jest": {
"roots": [
"/src"
],
"collectCoverageFrom": [
"src/**/*.{js,jsx,ts,tsx}",
"!src/**/*.d.ts"
],
"setupFiles": [
"react-app-polyfill/jsdom"
],
"setupFilesAfterEnv": [
"/src/setupTests.js"
],
"testMatch": [
"/src/**/__tests__/**/*.{js,jsx,ts,tsx}",
"/src/**/*.{spec,test}.{js,jsx,ts,tsx}"
],
"testEnvironment": "jsdom",
"testRunner": "D:\\react-study\\node_modules\\jest-circus\\runner.js",
"transform": {
"^.+\\.(js|jsx|mjs|cjs|ts|tsx)$": "/config/jest/babelTransform.js",
"^.+\\.css$": "/config/jest/cssTransform.js",
"^(?!.*\\.(js|jsx|mjs|cjs|ts|tsx|css|json)$)": "/config/jest/fileTransform.js"
},
"transformIgnorePatterns": [
"[/\\\\]node_modules[/\\\\].+\\.(js|jsx|mjs|cjs|ts|tsx)$",
"^.+\\.module\\.(css|sass|scss)$"
],
"modulePaths": [],
"moduleNameMapper": {
"^react-native$": "react-native-web",
"^.+\\.module\\.(css|sass|scss)$": "identity-obj-proxy"
},
"moduleFileExtensions": [
"web.js",
"js",
"web.ts",
"ts",
"web.tsx",
"tsx",
"json",
"web.jsx",
"jsx",
"node"
],
"watchPlugins": [
"jest-watch-typeahead/filename",
"jest-watch-typeahead/testname"
],
"resetMocks": true
},
"babel": {
"presets": [
"react-app"
]
},
"devDependencies": {
"stylus": "^0.54.8",
"stylus-loader": "^3.0.2"
}
} 运行npm run eject将内置配置文件暴露出来
一、配置stylus
TypeError: this.getOptions is not a function
原因：我的webpack版本是"webpack": "4.44.2",而版本不兼容导致stylus报错
改正为：npm i "stylus": "^0.54.8","stylus-loader": "^3.0.2"
const stylusRegex = /\.styl$/;
const stylusModuleRegex = = /\.module\.styl$/;
//仿照sassRegex写一个json，改为stylusRegx
{
test: stylusRegex,
exclude: stylusModuleRegex,
use: getStyleLoaders(
{
importLoaders: 3,
sourceMap: isEnvProduction
? shouldUseSourceMap
: isEnvDevelopment,
},
'stylus-loader'
),二、配置 hash模式
在eject出来的webpack.config.js文件中
{
test: stylusRegex,
use: getStyleLoaders({
importLoaders: 3,
sourceMap: isEnvProduction
? shouldUseSourceMap
: isEnvDevelopment,
modules:{
getLocalIdent:getCSSModuleLocalIdent
}
},
'stylus-loader'
),
sideEffects: true,
}sideEffects：文件影响的副作用，可以为数组/boolean
找到
modules:{
getLocalIdent:getCSSModuleLocalIdent
}中的getCSSModuleLocalIdent
路径为：
找到并配置参数：
const className = loaderUtils.interpolateName(
context,
localName + '_' + hash,
options
);hash为css样式后缀如图：
这样就开启了css模块化，主要防止css重命名冲突
hash也可以为自定义随机数等。
三、优化classNames样式
引入
npm install classnames在js中使用
import {Component} from 'react';
import styles from './styl.styl';
import classNames from "classnames/bind";
const ctx = classNames.bind(styles);
export default class Home extends Component {
constructor(props) {
super(props);
this.state = {
flag: true,
}
}
componentDidMount() {
}
render() {
const {flag} = this.state;
return (
classNames
)
}
}在stylus中
.page
width 400px
height 400px
color red
background yellow
.p
border-radius 40%当前目录：
四、跨域代理
在package.json中添加
proxy:"要请求的域名"axios.get('/路径')
结果：重定向到 要请求的域名/路径