typescript + eslint + prettier setting

typescript

npm install --save-dev typescript @types/react @types/node
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tsconfig.json

{
  "compilerOptions": {
    "baseUrl": "./",
    "jsx": "preserve",
    "target": "es5",
    "lib": ["dom", "dom.iterable", "esnext"],
    "allowJs": true,
    "skipLibCheck": true,
    "strict": false,
    "forceConsistentCasingInFileNames": true,
    "noEmit": true,
    "esModuleInterop": true,
    "module": "esnext",
    "moduleResolution": "node",
    "resolveJsonModule": true,
    "isolatedModules": true,
    "paths": {
      "/*": ["/*"]
    }
  },
  "exclude": ["node_modules"],
  "include": ["next-env.d.ts", "**/*.ts", "**/*.tsx"]
}
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eslint + prettier

참고

설치

npm i -D eslint prettier eslint-plugin-react eslint-plugin-react-hooks eslint-config-prettier eslint-plugin-prettier eslint-plugin-jsx-a11y @typescript-eslint/eslint-plugin @typescript-eslint/parser eslint-plugin-simple-import-sort
         eslint \                       # Eslint itself
         prettier \                     # Prettier itself
         eslint-plugin-react \          # Eslint plugin for react
         eslint-plugin-react-hooks \    # Eslint plugin for react hooks, helps you write modern functional react components
         eslint-config-prettier \       # Eslint config for prettier, it will extend the style guide to match prettier
         eslint-plugin-prettier \       # Eslint plugin for prettier, it will raise eslint errors about formatting
         eslint-plugin-jsx-a11y \        # Eslint plugin to raise accessibility violation errors
         @typescript-eslint/eslint-plugin \     # For extending our rules to work with prettier
         @typescript-eslint/parser  \            # To enable eslint to parse typescript code
         eslint-plugin-simple-import-sort  \
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세팅 파일 추가

touch .eslintignore .prettierignore
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두 파일에 모두 다음을 추가한다

node_modules
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touch .eslintrc.js .prettierrc
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.eslintrc.js

module.exports = {
  root: true, // Make sure eslint picks up the config at the root of the directory
  parser: "@typescript-eslint/parser",
  parserOptions: {
    ecmaVersion: 2020, // Use the latest ecmascript standard
    sourceType: "module", // Allows using import/export statements
    ecmaFeatures: {
      jsx: true, // Enable JSX since we're using React
    },
  },
  settings: {
    react: {
      version: "detect", // Automatically detect the react version
    },
  },
  env: {
    browser: true, // Enables browser globals like window and document
    amd: true, // Enables require() and define() as global variables as per the amd spec.
    node: true, // Enables Node.js global variables and Node.js scoping.
  },
  plugins: ["simple-import-sort"],
  extends: [
    "eslint:recommended",
    "plugin:react/recommended",
    "plugin:jsx-a11y/recommended",
    "plugin:prettier/recommended", // Make this the last element so prettier config overrides other formatting rules
    "plugin:@typescript-eslint/eslint-recommended",
    "plugin:@typescript-eslint/recommended",
    "prettier/@typescript-eslint",
  ],
  rules: {
        'prettier/prettier': ['error', {}, { usePrettierrc: true }],
        'react/react-in-jsx-scope': 'off',
        'react/prop-types': 'off',
        '@typescript-eslint/explicit-function-return-type': 'off',
				'@typescript-eslint/explicit-module-boundary-types": "off',
        'simple-import-sort/sort': 'error',
        'jsx-a11y/anchor-is-valid': [
            'error',
            {
                components: ['Link'],
                specialLink: ['hrefLeft', 'hrefRight'],
                aspects: ['invalidHref', 'preferButton']
            }
        ]
    }
};
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.prettierrc

{
  "semi": true,
  "tabWidth": 2,
  "singleQuote": false
}
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