.eslintrc.json

{
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "ecmaFeatures": {
      "jsx": true
    },
    "ecmaVersion": "latest",
    "sourceType": "module",
    "project": "./tsconfig.json"
  },
  "extends": ["airbnb", "prettier"],
  "overrides": [
    {
      "files": ["**/**/*.ts", "**/**/*.tsx"],
      "env": {
        "browser": true,
        "es6": true,
        "node": true
      },
      "extends": [
        "eslint:recommended",
        "plugin:@typescript-eslint/eslint-recommended",
        "plugin:@typescript-eslint/recommended"
      ],
      "plugins": ["@typescript-eslint"],
      "rules": {
        "no-var": "off",
        "no-unsafe-optional-chaining": 0,
        "react/jsx-no-useless-fragment": [2, {"allowExpressions": true}],
        "@typescript-eslint/no-explicit-any": 0,
        "@typescript-eslint/no-use-before-define": ["error"],
        "@typescript-eslint/no-empty-function": 0,
        "@typescript-eslint/no-shadow": ["error"]
      }
    },
    {
      "files": ["**/*.js"],
      "rules": {
        "no-use-before-define": [
          "error",
          {
            "functions": false
          }
        ]
      }
    },
    {
      // 3) Now we enable eslint-plugin-testing-library rules or preset only for matching testing files!
      "files": ["**/__tests__/**/*.[jt]s?(x)", "**/test?(*.).[jt]s?(x)"],
      "extends": ["plugin:testing-library/react", "plugin:jest/recommended", "plugin:jest/style"],
      "rules": {
        "testing-library/no-debugging-utils": "error",
        "testing-library/no-container": 0,
        "testing-library/no-node-access": ["error", {"allowContainerFirstChild": true}]
      }
    }
  ],
  "settings": {
    "import/resolver": {
      "node": {
        "extensions": [".js", ".jsx", ".ts", ".tsx"],
        "paths": ["."]
      },
      "typescript": {}
    }
  },
  "env": {
    "jest": true,
    "browser": true
  },
  "plugins": ["react", "no-only-tests", "react-hooks", "testing-library", "jest", "no-storage"],
  "rules": {
    "linebreak-style": ["error", "windows"],
    "quotes": ["error", "single"],
    "semi": ["error", "always"],
    "arrow-body-style": 0,
    "camelcase": 0,
    "no-mixed-operators": 0,
    "class-methods-use-this": 0,
    "no-bitwise": 0,
    "default-param-last": 0,
    "comma-dangle": [
      "error",
      {
        "arrays": "always-multiline",
        "objects": "always-multiline",
        "imports": "always-multiline",
        "exports": "always-multiline",
        "functions": "ignore"
      }
    ],
    "no-use-before-define": "off",
    "object-curly-spacing": [2, "never"],
    "curly": ["error", "all"],
    "no-shadow": 0,
    "no-underscore-dangle": 0,
    "no-await-in-loop": 0,
    "prefer-regex-literals": 0,
    "prefer-destructuring": 0,
    "prefer-promise-reject-errors": 0,
    "vars-on-top": 0,
    "no-else-return": ["error", {"allowElseIf": true}],
    "no-restricted-globals": 0,
    "no-restricted-syntax": 0,
    "no-promise-executor-return": 0,
    "no-unsafe-optional-chaining": 0,
    "import/no-named-as-default-member": 0,
    "import/no-extraneous-dependencies": [
      "error",
      {
        "devDependencies": ["**/*test*.js", "**/*test*.ts", "**/*test*.tsx"],
        "optionalDependencies": false,
        "peerDependencies": false
      }
    ],
    "import/no-named-as-default": 0,
    "import/extensions": 0,
    "import/prefer-default-export": 0,
    "import/no-unresolved": [
      "error",
      {
        "commonjs": true
      }
    ],
    "import/no-cycle": 0, // off by default, should be checked regularly
    "import/named": 0,
    "react/jsx-fragments": [1, "element"],
    "react/jsx-no-target-blank": 0,
    "react/jsx-filename-extension": 0,
    "react/forbid-prop-types": 0,
    "react/jsx-props-no-spreading": 0,
    "react/require-default-props": 0,
    "react/static-property-placement": 0,
    "react/state-in-constructor": 0,
    "react/jsx-indent-props": [2, 4],
    "react/destructuring-assignment": 0,
    "react/forbid-foreign-prop-types": 0,
    "react/function-component-definition": 0,
    "react/no-unstable-nested-components": 0,
    "react/jsx-no-useless-fragment": [2, {"allowExpressions": true}],
    "react/jsx-no-constructed-context-values": 0,
    "jsx-a11y/control-has-associated-label": 0,
    "jsx-a11y/no-static-element-interactions": 0,
    "jsx-a11y/click-events-have-key-events": 0,
    "jsx-a11y/no-noninteractive-element-interactions": 0,
    "jsx-a11y/anchor-is-valid": 0,
    "jsx-a11y/mouse-events-have-key-events": 0,
    "jsx-a11y/no-autofocus": 0,
    "no-only-tests/no-only-tests": 2,
    "react-hooks/rules-of-hooks": "error",
    "react-hooks/exhaustive-deps": "warn",
    "no-storage/no-browser-storage": 2,
    "no-param-reassign": ["error", {"props": false}],
    "react/no-array-index-key": "off"
  }
}