.eslintrc.json

{
  "root": true,
  "env": {
    "browser": true,
    "node": true,
    "jest": true
  },
  "extends": [
    "next/core-web-vitals",
    "plugin:testing-library/react",
    "plugin:jest-dom/recommended",
    "eslint:recommended",
    "plugin:@typescript-eslint/eslint-recommended",
    "plugin:@typescript-eslint/recommended",
    "plugin:import/errors",
    "plugin:import/typescript",
    "plugin:import/warnings",
    "plugin:react/recommended",
    "plugin:jsx-a11y/recommended",
    "next",
    "next/core-web-vitals",
    "prettier"
  ],
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "ecmaFeatures": {
      "jsx": true
    },
    "ecmaVersion": 2018,
    "sourceType": "module"
  },
  "plugins": ["@typescript-eslint", "import", "testing-library"],
  "overrides": [
    // Only uses Testing Library lint rules in test files
    {
      "files": [
        "**/__tests__/**/*.[jt]s?(x)",
        "**/?(*.)+(spec|test).[jt]s?(x)",
        ".ts",
        ".tsx"
      ]
    }
  ],
  "rules": {
    "@typescript-eslint/explicit-module-boundary-types": ["error"],
    "@typescript-eslint/init-declarations": ["error", "always"],
    "@typescript-eslint/lines-between-class-members": ["warn"],
    "@typescript-eslint/no-array-constructor": ["warn"],
    // "@typescript-eslint/no-duplicate-imports": ["warn"],
    "@typescript-eslint/no-empty-function": ["warn"],
    "@typescript-eslint/no-explicit-any": 0,
    "@typescript-eslint/no-unused-vars": "error",
    "@typescript-eslint/no-use-before-define": [1],
    "@typescript-eslint/no-useless-constructor": "error",
    "@typescript-eslint/no-var-requires": 0,
    "@typescript-eslint/prefer-for-of": 2,
    "brace-style": "off",
    "comma-dangle": "off",
    "comma-spacing": "off",
    "func-call-spacing": "off",
    "import/extensions": "off",
    "import/no-cycle": "warn",
    "import/no-extraneous-dependencies": [
      "error",
      {
        "devDependencies": true,
        "optionalDependencies": false,
        "peerDependencies": false
      }
    ],
    "import/no-named-as-default": "warn",
    "import/no-named-as-default-member": "warn",
    "import/no-unresolved": "off",
    "import/no-useless-path-segments": "warn",
    "import/order": "off",
    "import/prefer-default-export": "warn",
    "indent": "off",
    "init-declarations": "off",
    "keyword-spacing": "off",
    "lines-between-class-members": "off",
    "no-array-constructor": "off",
    "no-console": [
      "warn",
      {
        "allow": ["warn", "error"]
      }
    ],
    "no-duplicate-imports": "warn",
    "no-empty-function": "off",
    "no-explicit-any": "off",
    "no-extra-parens": "off",
    "no-lone-blocks": "warn",
    "no-tabs": "off",
    "no-unused-vars": "off",
    "no-use-before-define": [0],
    "no-useless-constructor": "off",
    "react/destructuring-assignment": "warn",
    "react/function-component-definition": [
      2,
      {
        "namedComponents": "arrow-function"
      }
    ],
    "react/jsx-curly-brace-presence": "warn",
    "react/jsx-filename-extension": "off",
    "react/jsx-fragments": [2, "element"],
    "react/jsx-indent": "off",
    "react/jsx-indent-props": "off",
    "react/jsx-one-expression-per-line": "off",
    "react/jsx-props-no-spreading": "off",
    "react/jsx-sort-props": [
      "warn",
      {
        "ignoreCase": true,
        "reservedFirst": false,
        "noSortAlphabetically": true
      }
    ],
    "react/no-access-state-in-setstate": "warn",
    "react/no-array-index-key": "off",
    "react/no-did-update-set-state": "off",
    "react/no-find-dom-node": "warn",
    "react/no-unused-state": "off",
    "react/prefer-stateless-function": [
      "warn",
      {
        "ignorePureComponents": true
      }
    ],
    "react/prop-types": "off",
    "react/require-default-prop": "off",
    "react/require-default-props": "off",
    "react/self-closing-comp": "warn",
    "react/sort-comp": "warn",
    "react/static-property-placement": ["warn", "static public field"],
    "settings": {
      "import/extensions": [".js", ".json", ".ts", ".tsx"],
      "import/parsers": {
        "@typescript-eslint/parser": [".js", ".json", ".ts", ".tsx"]
      },
      "import/resolver": {
        "node": {
          "extensions": [".js", ".json", ".ts", ".tsx"],
          "moduleDirectory": [
            "node_modules",
            "pages",
            "public",
            "src",
            "styles"
          ]
        },
        "typescript": {
          "alwaysTryTypes": true
        }
      },
      "react": {
        "version": "detect"
      }
    }
  }
}