index.js

module.exports = {
  parser: '@typescript-eslint/parser',
  env: { browser: true, node: true },
  plugins: [
    'react',
    'react-hooks',
    'react-perf',
    'no-loops',
    'jsdoc',
    '@typescript-eslint',
    '@getify/proper-arrows',
  ],
  root: true,
  settings: {
    react: { version: 'detect' },
    jsdoc: {
      mode: 'typescript',
    },
  },
  parserOptions: {
    project: true,
  },
  ignorePatterns: ['**/*.d.ts'],
  rules: {
    'no-console': 'warn',
    'for-direction': 'error',
    'getter-return': 'error',
    'no-async-promise-executor': 'error',
    'no-await-in-loop': 'error',
    'no-compare-neg-zero': 'error',
    'no-cond-assign': 'error',
    'no-constant-condition': 'error',
    'no-control-regex': 'error',
    'no-debugger': 'error',
    'no-dupe-args': 'error',
    'no-dupe-else-if': 'error',
    'no-dupe-keys': 'error',
    'no-duplicate-case': 'error',
    'no-empty': 'error',
    'no-empty-character-class': 'error',
    'no-ex-assign': 'error',
    'no-extra-boolean-cast': 'error',
    'no-extra-semi': 'error',
    'no-func-assign': 'error',
    'no-import-assign': 'error',
    'no-inner-declarations': 'error',
    'no-invalid-regexp': 'error',
    'no-irregular-whitespace': 'error',
    'no-misleading-character-class': 'error',
    'no-obj-calls': 'error',
    'no-promise-executor-return': 'error',
    'no-prototype-builtins': 'error',
    'no-regex-spaces': 'error',
    'no-setter-return': 'error',
    'no-sparse-arrays': 'error',
    'no-template-curly-in-string': 'error',
    'no-unexpected-multiline': 'error',
    'no-unreachable': 'error',
    'no-unreachable-loop': 'error',
    'no-unsafe-finally': 'error',
    'no-unsafe-negation': 'error',
    'no-unsafe-optional-chaining': 'error',
    'require-atomic-updates': 'error',
    'use-isnan': 'error',
    'valid-typeof': 'error',
    'array-callback-return': 'error',
    'block-scoped-var': 'error',
    'class-methods-use-this': 'error',
    complexity: ['error', { max: 25 }],
    'consistent-return': 'error',
    'default-case': 'error',
    'default-case-last': 'error',
    eqeqeq: 'error',
    'max-classes-per-file': ['error', 5],
    'no-alert': 'error',
    'no-case-declarations': 'error',
    'no-constructor-return': 'error',
    'no-else-return': 'error',
    'no-empty-function': 'error',
    'no-empty-pattern': 'error',
    'no-eval': 'error',
    'no-extra-label': 'error',
    'no-fallthrough': 'error',
    'no-floating-decimal': 'error',
    'no-global-assign': 'error',
    'no-implicit-coercion': 'error',
    'no-implicit-globals': 'error',
    'no-iterator': 'error',
    'no-labels': 'error',
    'no-lone-blocks': 'error',
    'no-new': 'error',
    'no-new-func': 'error',
    'no-new-wrappers': 'error',
    'no-octal': 'error',
    'no-param-reassign': 'error',
    'no-return-assign': 'error',
    'no-self-assign': 'error',
    'no-sequences': 'error',
    'no-with': 'error',
    'prefer-promise-reject-errors': 'error',
    'prefer-regex-literals': 'error',
    radix: 'error',
    'require-unicode-regexp': 'error',
    yoda: 'error',
    'no-shadow-restricted-names': 'error',
    'no-restricted-exports': [
      'error',
      {
        restrictDefaultExports: {
          direct: true,
          named: true,
          defaultFrom: true,
          namedFrom: true,
          namespaceFrom: true,
        },
      },
    ],
    'arrow-body-style': ['error', 'as-needed'],
    'constructor-super': 'error',
    'no-const-assign': 'error',
    'no-dupe-class-members': 'error',
    'no-duplicate-imports': 'warn',
    'no-this-before-super': 'error',
    'no-var': 'error',
    'object-shorthand': 'error',
    'prefer-arrow-callback': 'error',
    'prefer-const': [
      'error',
      {
        destructuring: 'all',
      },
    ],
    'prefer-destructuring': 'error',
    'prefer-rest-params': 'error',
    'prefer-spread': 'error',
    'prefer-template': 'error',

    'react/button-has-type': 'error',
    'react/function-component-definition': [
      'error',
      { namedComponents: 'function-declaration', unnamedComponents: 'arrow-function' },
    ],
    'react/no-array-index-key': 'error',
    'react/no-children-prop': 'error',
    'react/no-danger-with-children': 'error',
    'react/no-deprecated': 'error',
    'react/no-did-mount-set-state': 'error',
    'react/no-did-update-set-state': 'error',
    'react/no-direct-mutation-state': 'error',
    'react/no-this-in-sfc': 'error',
    'react/no-typos': 'error',
    'react/no-unknown-property': 'error',
    'react/no-unsafe': 'error',
    'react/no-unused-state': 'error',
    'react/prefer-stateless-function': 'error',
    'react/self-closing-comp': 'error',
    'react/jsx-boolean-value': 'error',
    'react/jsx-key': 'error',
    'react/jsx-max-depth': ['error', { max: 15 }],
    'react/jsx-no-duplicate-props': 'error',
    'react/jsx-no-useless-fragment': 'error',
    'react/state-in-constructor': ['error', 'always'],
    'react-hooks/rules-of-hooks': 'error',
    'react-hooks/exhaustive-deps': 'error',
    'no-loops/no-loops': 'error',
    'react-perf/jsx-no-new-object-as-prop': ['error', { nativeAllowList: 'all' }],
    'react-perf/jsx-no-new-array-as-prop': ['error', { nativeAllowList: 'all' }],
    'react-perf/jsx-no-new-function-as-prop': ['error', { nativeAllowList: 'all' }],
    'jsdoc/check-alignment': 1,
    'jsdoc/check-indentation': 1,
    'jsdoc/check-param-names': 1,
    'jsdoc/check-tag-names': 1,
    'jsdoc/check-types': 1,
    'jsdoc/empty-tags': 1,
    'jsdoc/multiline-blocks': 1,
    'jsdoc/newline-after-description': 1,
    'jsdoc/no-multi-asterisks': 1,
    'jsdoc/no-undefined-types': 1,
    'jsdoc/require-asterisk-prefix': ['error', 'always'],
    'jsdoc/require-jsdoc': [
      'error',
      {
        require: {
          ClassDeclaration: true,
          ClassExpression: true,
          MethodDefinition: true,
          ArrowFunctionExpression: false,
          FunctionDeclaration: false,
          FunctionExpression: false,
        },
        checkConstructors: false,
      },
    ],
    'jsdoc/require-param-description': 1,
    'jsdoc/require-param-name': 1,
    'jsdoc/require-param-type': 0,
    'jsdoc/require-param': 1,
    'jsdoc/require-property': 1,
    'jsdoc/require-property-description': 1,
    'jsdoc/require-property-name': 1,
    'jsdoc/require-property-type': 1,
    'jsdoc/require-returns-check': 1,
    'jsdoc/require-returns-description': 1,
    'jsdoc/require-returns-type': 0,
    'jsdoc/require-returns': 1,
    'jsdoc/require-throws': 1,
    '@getify/proper-arrows/where': [
      'error',
      { global: false, export: true, 'global-declaration': true, property: false, trivial: false },
    ],
    '@getify/proper-arrows/return': [
      'error',
      { object: false, chained: false, ternary: 1, sequence: true, trivial: false },
    ],
    '@typescript-eslint/array-type': [
      'warn',
      {
        default: 'array-simple',
        readonly: 'array-simple',
      },
    ],
    '@typescript-eslint/await-thenable': 'error',
    '@typescript-eslint/ban-types': 'error',
    '@typescript-eslint/consistent-generic-constructors': 'error',
    '@typescript-eslint/consistent-indexed-object-style': 'error',
    '@typescript-eslint/consistent-type-assertions': ['error', { assertionStyle: 'as' }],
    '@typescript-eslint/consistent-type-definitions': ['error', 'type'], // maybe we should switch to interface instead
    '@typescript-eslint/consistent-type-exports': 'error',
    '@typescript-eslint/consistent-type-imports': 'error',
    '@typescript-eslint/explicit-module-boundary-types': 'off',
    '@typescript-eslint/naming-convention': [
      'error',
      {
        selector: 'variable',
        types: ['boolean'],
        format: ['PascalCase'],
        prefix: ['is', 'should', 'has', 'can', 'did', 'will'],
      },
      { selector: 'variableLike', format: ['camelCase', 'UPPER_CASE'] },
      {
        selector: ['function'],
        format: ['camelCase', 'PascalCase'],
        leadingUnderscore: 'allow',
      },
      {
        selector: 'interface',
        format: ['PascalCase'],
        custom: {
          regex: '^I[A-Z]',
          match: false,
        },
      },
      {
        selector: [
          'classProperty',
          'objectLiteralProperty',
          'typeProperty',
          'classMethod',
          'objectLiteralMethod',
          'typeMethod',
          'accessor',
          'enumMember',
        ],
        format: null,
        modifiers: ['requiresQuotes'],
      },
    ],
    '@typescript-eslint/no-confusing-void-expression': 'error',
    '@typescript-eslint/no-duplicate-enum-values': 'error',
    '@typescript-eslint/no-duplicate-type-constituents': 'error',
    '@typescript-eslint/no-dynamic-delete': 'error',
    '@typescript-eslint/no-empty-interface': 'error',
    '@typescript-eslint/no-explicit-any': 'error',
    '@typescript-eslint/no-extra-non-null-assertion': 'error',
    '@typescript-eslint/no-extraneous-class': 'error',
    '@typescript-eslint/no-floating-promises': 'error',
    '@typescript-eslint/no-for-in-array': 'error',
    '@typescript-eslint/no-import-type-side-effects': 'error',
    '@typescript-eslint/no-inferrable-types': 'error',
    '@typescript-eslint/no-invalid-void-type': 'error',
    '@typescript-eslint/no-meaningless-void-operator': 'error',
    '@typescript-eslint/no-misused-new': 'error',
    '@typescript-eslint/no-misused-promises': [
      'error',
      {
        checksConditionals: true,
        checksVoidReturn: true,
        checksSpreads: true,
      },
    ],
    '@typescript-eslint/no-namespace': 'error',
    '@typescript-eslint/no-non-null-asserted-nullish-coalescing': 'error',
    '@typescript-eslint/no-non-null-asserted-optional-chain': 'error',
    '@typescript-eslint/no-non-null-assertion': 'error',
    '@typescript-eslint/no-redundant-type-constituents': 'error',
    '@typescript-eslint/no-require-imports': 'warn',
    '@typescript-eslint/no-this-alias': 'error',
    '@typescript-eslint/no-unnecessary-boolean-literal-compare': 'error',
    '@typescript-eslint/no-unnecessary-condition': 'error',
    '@typescript-eslint/no-unnecessary-type-arguments': 'error',
    '@typescript-eslint/no-unnecessary-type-assertion': 'error',
    '@typescript-eslint/no-unnecessary-type-constraint': 'error',
    '@typescript-eslint/no-unsafe-argument': 'error',
    '@typescript-eslint/no-unsafe-assignment': 'error',
    '@typescript-eslint/no-unsafe-call': 'error',
    '@typescript-eslint/no-unsafe-declaration-merging': 'error',
    '@typescript-eslint/no-unsafe-member-access': 'error',
    '@typescript-eslint/no-unsafe-return': 'error',
    '@typescript-eslint/no-useless-empty-export': 'error',
    '@typescript-eslint/no-var-requires': 'error',
    '@typescript-eslint/parameter-properties': 'error',
    '@typescript-eslint/prefer-as-const': 'error',
    '@typescript-eslint/prefer-enum-initializers': 'error',
    '@typescript-eslint/prefer-for-of': 'error',
    '@typescript-eslint/prefer-function-type': 'error',
    '@typescript-eslint/prefer-includes': 'error',
    '@typescript-eslint/prefer-literal-enum-member': 'error',
    '@typescript-eslint/prefer-namespace-keyword': 'error',
    '@typescript-eslint/prefer-nullish-coalescing': 'error',
    '@typescript-eslint/prefer-optional-chain': 'error',
    '@typescript-eslint/prefer-readonly-parameter-types': 'off', // only because React.Node is mutable
    '@typescript-eslint/prefer-reduce-type-parameter': 'error',
    '@typescript-eslint/prefer-regexp-exec': 'error',
    '@typescript-eslint/prefer-return-this-type': 'error',
    '@typescript-eslint/prefer-string-starts-ends-with': 'error',
    '@typescript-eslint/prefer-ts-expect-error': 'error',
    '@typescript-eslint/promise-function-async': 'error',
    '@typescript-eslint/require-array-sort-compare': 'error',
    '@typescript-eslint/restrict-plus-operands': 'error',
    '@typescript-eslint/restrict-template-expressions': 'error',
    '@typescript-eslint/strict-boolean-expressions': [
      'error',
      {
        allowNullableBoolean: true,
      },
    ],
    '@typescript-eslint/switch-exhaustiveness-check': 'error',
    '@typescript-eslint/unified-signatures': 'error',
    '@typescript-eslint/default-param-last': 'error',
    '@typescript-eslint/dot-notation': 'error',
    '@typescript-eslint/init-declarations': ['error', 'always'],
    '@typescript-eslint/no-invalid-this': 'error',
    '@typescript-eslint/no-loop-func': 'error',
    '@typescript-eslint/no-loss-of-precision': 'error',
    '@typescript-eslint/no-magic-numbers': [
      'warn',
      {
        ignore: [-1, 0, 1, 1000, 60, 24, 12],
        detectObjects: false,
        ignoreDefaultValues: true,
        ignoreEnums: true,
        ignoreNumericLiteralTypes: true,
        ignoreReadonlyClassProperties: true,
        ignoreTypeIndexes: true,
      },
    ],
    '@typescript-eslint/no-redeclare': 'error',
    '@typescript-eslint/no-throw-literal': 'error',
    '@typescript-eslint/no-unused-expressions': 'error',
    '@typescript-eslint/no-unused-vars': 'warn',
    '@typescript-eslint/no-use-before-define': 'error',
    '@typescript-eslint/no-useless-constructor': 'error',
    '@typescript-eslint/require-await': 'error',
    '@typescript-eslint/return-await': ['error', 'in-try-catch'],
  },
};