.eslintrc.json

{
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "ecmaVersion": 6,
    "sourceType": "module",
    "project": "./tsconfig.json",
    "ecmaFeatures": {
      "jsx": true
    }
  },
  "plugins": ["@typescript-eslint", "prettier"],
  "extends": [
    "airbnb-typescript",
    "airbnb/hooks",
    "plugin:@typescript-eslint/recommended",
    "plugin:prettier/recommended"
  ],
  "env": {
    "browser": true,
    "es6": true
  },
  "rules": {
    "react/react-in-jsx-scope": "off",
    "react/no-array-index-key": "off",
    "@typescript-eslint/explicit-function-return-type": "off",
    "jsx-a11y/anchor-is-valid": ["off"],
    "@typescript-eslint/no-use-before-define": [
      "error",
      {
        "functions": false,
        "classes": true,
        "variables": true,
        "typedefs": true
      }
    ],
    "prettier/prettier": ["error", { "printWidth": 100 }],
    "import/extensions": [
      "error",
      "ignorePackages",
      {
        "js": "never",
        "jsx": "never",
        "ts": "never",
        "tsx": "never"
      }
    ]
  },
  "settings": {
    "import/parsers": {
      "@typescript-eslint/parser": [".ts", ".tsx"]
    },
    "import/resolver": {
      "node": {
        "extensions": [".js", ".jsx", ".ts", ".tsx"]
      }
    }
  },
  "overrides": [
    {
      "files": ["*.js"],
      "rules": {
        // Allow `require()` syntax
        "@typescript-eslint/no-var-requires": "off"
      }
    }
  ]
}