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README.md

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  1. Add ESLint, Prettier extensions
  2. Install all necessary npm packages
  3. Create, configurate .prettierrc, .eslintrc files
  4. Configurate IDE settings (on formatOnSave / formatOnPaste / codeActionOnSave)
  5. Add scripts in package.json file

Preview .eslintrc

{
    "settings": {
        "import/resolver": {
            "node": {
                "paths": [ // absolute Imports at relative of src directory
                    "src"
                ]
            }
        }
    },
    "env": {
        "browser": true,
        "es2021": true
    },
    "extends": [ // make sure prettier is last
        "eslint:recommended",
        "plugin:react/recommended",
        "plugin:@typescript-eslint/recommended",
        "plugin:import/errors",
        "plugin:import/warnings",
        "plugin:import/typescript",
        "prettier"
    ],
    "plugins": [
        "@typescript-eslint",
        "import",
        "react",
        "react-hooks",
        "prettier"
    ],
    "parser": "@typescript-eslint/parser",
    "parserOptions": {
        "ecmaVersion": "latest",
        "sourceType": "module"
    },
    "rules": {
        "prettier/prettier": [
            "warn",
            {
                "endOfLine": "auto" // solve `CR` warn
            }
        ],
        "no-console": "warn",
        "quotes": [
            "error",
            "single"
        ],
        "jsx-quotes": [
            "error",
            "prefer-double"
        ],
        "no-unused-vars": "warn",
        "prefer-const": "error",
        "comma-dangle": [
            "warn",
            "never"
        ],
        "semi": [
            "warn",
            "always"
        ],
        "@typescript-eslint/no-explicit-any": "off",
        "import/order": [
            "error",
            {
                "groups": [
                    "builtin",
                    "external",
                    "internal",
                    "parent",
                    "sibling",
                    "index",
                    "object",
                    "type"
                ],
                "newlines-between": "always-and-inside-groups"
            }
        ],
        "react-hooks/exhaustive-deps": "warn"
    }
}

Preview .prettierrc

{
    "tabWidth": 4,
    "arrowParens": "avoid",
    "semi": true,
    "trailingComma": "none",
    "singleQuote": true,
    "jsxSingleQuote": false,
    "singleAttributePerLine": true
}

Preview devDependencies

  "devDependencies": {
    "@typescript-eslint/eslint-plugin": "^5.42.0",
    "@typescript-eslint/parser": "^5.42.0",
    "eslint": "^8.26.0",
    "eslint-config-prettier": "^8.5.0",
    "eslint-plugin-prettier": "^4.2.1",
    "eslint-plugin-react": "^7.31.10",
    "eslint-plugin-react-hooks": "^4.6.0",
    "prettier": "^2.7.1"
  }

Preview settings.json

  "editor.formatOnSave": true,
  "editor.formatOnPaste": true,
  "editor.codeActionsOnSave": {
    "source.fixAll": true
  },

Available Scripts

"scripts": {
  "lint": "eslint -c .eslintrc --ext .js,.jsx,.ts,.tsx .",
  "lint:fix": "npm run lint -- --fix"
}

Usage

npm run lint
npm run lint:fix