eslint-config/packages/typescript/index.js

// eslint-disable-next-line @typescript-eslint/no-var-requires
const basic = require('@antfu/eslint-config-basic')

module.exports = {
  extends: [
    '@antfu/eslint-config-basic',
    'plugin:import/typescript',
    'plugin:@typescript-eslint/recommended',
  ],
  settings: {
    'import/resolver': {
      node: { extensions: ['.js', '.jsx', '.mjs', '.ts', '.tsx', '.d.ts'] },
    },
  },
  overrides: basic.overrides,
  rules: {
    'import/named': 'off',

    // TS
    '@typescript-eslint/semi': ['error', 'never'],
    '@typescript-eslint/ban-ts-comment': ['error', { 'ts-ignore': 'allow-with-description' }],
    '@typescript-eslint/member-delimiter-style': ['error', { multiline: { delimiter: 'none' } }],
    '@typescript-eslint/type-annotation-spacing': ['error', {}],
    '@typescript-eslint/consistent-type-imports': ['error', { prefer: 'type-imports', disallowTypeAnnotations: false }],
    '@typescript-eslint/consistent-type-definitions': ['error', 'interface'],
    '@typescript-eslint/consistent-indexed-object-style': ['error', 'record'],
    '@typescript-eslint/prefer-ts-expect-error': 'error',

    // Override JS
    'no-useless-constructor': 'off',
    'indent': 'off',
    '@typescript-eslint/indent': ['error', 2, {
      SwitchCase: 1,
      VariableDeclarator: 1,
      outerIIFEBody: 1,
      MemberExpression: 1,
      FunctionDeclaration: { parameters: 1, body: 1 },
      FunctionExpression: { parameters: 1, body: 1 },
      CallExpression: { arguments: 1 },
      ArrayExpression: 1,
      ObjectExpression: 1,
      ImportDeclaration: 1,
      flatTernaryExpressions: false,
      ignoreComments: false,
      ignoredNodes: [
        'TemplateLiteral *',
        'JSXElement',
        'JSXElement > *',
        'JSXAttribute',
        'JSXIdentifier',
        'JSXNamespacedName',
        'JSXMemberExpression',
        'JSXSpreadAttribute',
        'JSXExpressionContainer',
        'JSXOpeningElement',
        'JSXClosingElement',
        'JSXFragment',
        'JSXOpeningFragment',
        'JSXClosingFragment',
        'JSXText',
        'JSXEmptyExpression',
        'JSXSpreadChild',
        'TSTypeParameterInstantiation',
      ],
      offsetTernaryExpressions: true,
    }],
    'no-unused-vars': 'off',
    '@typescript-eslint/no-unused-vars': ['error', { argsIgnorePattern: '^_' }],
    'no-redeclare': 'off',
    '@typescript-eslint/no-redeclare': 'error',
    'no-use-before-define': 'off',
    '@typescript-eslint/no-use-before-define': ['error', { functions: false, classes: false, variables: true }],
    'brace-style': 'off',
    '@typescript-eslint/brace-style': ['error', 'stroustrup', { allowSingleLine: true }],
    'comma-dangle': 'off',
    '@typescript-eslint/comma-dangle': ['error', 'always-multiline'],
    'object-curly-spacing': 'off',
    '@typescript-eslint/object-curly-spacing': ['error', 'always'],

    // off
    '@typescript-eslint/camelcase': 'off',
    '@typescript-eslint/explicit-function-return-type': 'off',
    '@typescript-eslint/explicit-member-accessibility': 'off',
    '@typescript-eslint/no-explicit-any': 'off',
    '@typescript-eslint/no-parameter-properties': 'off',
    '@typescript-eslint/no-empty-interface': 'off',
    '@typescript-eslint/ban-ts-ignore': 'off',
    '@typescript-eslint/no-empty-function': 'off',
    '@typescript-eslint/no-non-null-assertion': 'off',
    '@typescript-eslint/explicit-module-boundary-types': 'off',
    '@typescript-eslint/ban-types': 'off',
    '@typescript-eslint/no-namespace': 'off',
  },
}