eslint
作用：javascript代码检测工具 检测js语法比如箭头函数加return 只定义没有修改过值用const定义这种语法规范
- 新建一个.eslintrc.js文件
- extends 继承语法包 rules可以自己添加自己的语法配置
- .eslintignore eslint忽略文件
.eslintrc.js
module.exports = {
"extends": [
"react-app",
"react-app/jest",
"plugin:prettier/recommended"
],
"rules":{
"no-unused-vars": [
2,
{
// 允许声明未使用变量
vars: "local",
// 参数不检查
args: "none"
}
],
"prettier/prettier": "warn",
"no-console": process.env.NODE_ENV === 'development' ? "off" : "warn",
"no-debugger": process.env.NODE_ENV === 'development' ? "off" : "error",
}
};
.eslintignore
node_modules
scripts
build
public
bebel
作用：处理js脚本文件。所有js文件要通过babel-loader解析转换成es5语法
- 判断环境生产环境移除console
- presets 语法预设
- plugins babel插件
- 依赖
- babel-plugin-transform-remove-console 移除console
- @babel/plugin-proposal-decorators 处理装饰器语法
.babelrc.js
const plugins = [
[
"@babel/plugin-proposal-decorators",
{
"legacy": true
}
]
];
const config = {
"presets": [
"react-app"
],
plugins
}
if(process.env.NODE_ENV === 'production'){
plugins.push("transform-remove-console")
}
module.exports = config;
.prettierrc
{
"arrowParens": "always",
"bracketSpacing": true,
"endOfLine": "crlf",
"embeddedLanguageFormatting": "auto",
"htmlWhitespaceSensitivity": "css",
"insertPragma": false,
"jsxBracketSameLine": false,
"jsxSingleQuote": false,
"proseWrap": "preserve",
"quoteProps": "as-needed",
"requirePragma": false,
"semi": true,
"singleQuote": false,
"trailingComma": "es5",
"useTabs": false,
"vueIndentScriptAndStyle": false,
"printWidth": 100,
"tabWidth": 2
}
prettier
作用：约定代码风格，比如分号，比如空格，比如缩进
- 依赖
- preitter
- eslint-config-prettier 解决eslint和prettier冲突
- eslint-plugin-prettier eslint编译时结合prettier使用
-
升级eslint@7.28.0
image.png
package.json
{
"name": "client",
"version": "0.1.0",
"private": true,
"dependencies": {
"@babel/core": "7.12.3",
"@babel/plugin-proposal-decorators": "^7.15.4",
"@pmmmwh/react-refresh-webpack-plugin": "0.4.3",
"@svgr/webpack": "5.5.0",
"@testing-library/jest-dom": "^5.11.4",
"@testing-library/react": "^11.1.0",
"@testing-library/user-event": "^12.1.10",
"@typescript-eslint/eslint-plugin": "^4.5.0",
"@typescript-eslint/parser": "^4.5.0",
"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",
"css-loader": "4.3.0",
"dotenv": "8.2.0",
"dotenv-expand": "5.1.0",
"eslint": "7.28.0",
"eslint-config-prettier": "^8.3.0",
"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-prettier": "^4.0.0",
"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",
"prettier": "^2.3.2",
"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": "^5.3.0",
"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": "^1.0.1",
"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"
},
"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": [
"<rootDir>/src"
],
"collectCoverageFrom": [
"src/**/*.{js,jsx,ts,tsx}",
"!src/**/*.d.ts"
],
"setupFiles": [
"react-app-polyfill/jsdom"
],
"setupFilesAfterEnv": [
"<rootDir>/src/setupTests.js"
],
"testMatch": [
"<rootDir>/src/**/__tests__/**/*.{js,jsx,ts,tsx}",
"<rootDir>/src/**/*.{spec,test}.{js,jsx,ts,tsx}"
],
"testEnvironment": "jsdom",
"testRunner": "/Users/yihang/Desktop/1901B/wipi-bw/client/node_modules/jest-circus/runner.js",
"transform": {
"^.+\\.(js|jsx|mjs|cjs|ts|tsx)$": "<rootDir>/config/jest/babelTransform.js",
"^.+\\.css$": "<rootDir>/config/jest/cssTransform.js",
"^(?!.*\\.(js|jsx|mjs|cjs|ts|tsx|css|json)$)": "<rootDir>/config/jest/fileTransform.js"
},
"transformIgnorePatterns": [
"[/\\\\]node_modules[/\\\\].+\\.(js|jsx|mjs|cjs|ts|tsx)$",
"^.+\\.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
}
}
