.eslintrc

{
  "ignorePatterns": ["*.json"],
  "extends": [
    "next",
    "react-app",
    "plugin:@typescript-eslint/eslint-recommended",
    "plugin:@typescript-eslint/recommended",
    "plugin:testing-library/react",
    "plugin:jest-dom/recommended",
    "plugin:jsx-a11y/recommended",
    "prettier"
  ],
  "plugins": ["tailwindcss", "jsx-a11y", "testing-library", "jest-dom"],
  "overrides": [
    {
      "files": ["**/*.ts", "**/*.tsx"],
      "rules": {
        "no-undef": ["off"],
        "react-hooks/exhaustive-deps": "error"
      }
    },
    // js files in the root dir can use `const ... = require(...)`
    {
      "files": ["./*.js"],
      "rules": {
        "@typescript-eslint/no-var-requires": "off"
      }
    }
  ],
  "rules": {
    "tailwindcss/no-custom-classname": [
      "error",
      {
        "callees": ["classNames", "classnames"]
      }
    ],
    "@typescript-eslint/explicit-module-boundary-types": "error", // exported functions must have return types
    "@typescript-eslint/no-empty-function": "off", // empty arrow functions are fine for noops when passed to components
    "@typescript-eslint/no-empty-interface": "off", // empty interfaces for component props should be allowed
    "@typescript-eslint/no-unused-vars": [
      "warn",
      {
        "argsIgnorePattern": "^unused"
      }
    ],
    "@typescript-eslint/no-magic-numbers": [
      "error",
      {
        "ignore": [
          -1, 0, 1, 2, 3, 4, 8, 10,
          // the length of a wallet address
          42, 100
        ],
        "ignoreArrayIndexes": true,
        "ignoreDefaultValues": true,
        "ignoreNumericLiteralTypes": true,
        "ignoreReadonlyClassProperties": true,
        "ignoreEnums": true
      }
    ],
    "import/no-unused-modules": "error",
    "curly": "error",
    "no-console": [
      "warn",
      {
        "allow": ["warn", "error", "info", "assert"]
      }
    ],
    "no-new-func": "error", // const func = new Function()
    "no-restricted-imports": [
      "error",
      {
        "patterns": ["\\.\\./*"]
      }
    ],
    "no-unused-vars": "off",
    "prefer-template": "error",
    "react/no-unused-prop-types": 0
  },
  "settings": {
    "import/resolver": {
      // always try to resolve types under `<root>@types` directory even it doesn't contain any
      // source code, like `@types/unist`
      "eslint-import-resolver-typescript": {
        "alwaysTryTypes": true
      }
    }
  }
}