shared.js

module.exports = {
  env: {
    browser: true,
    es6: true,
    node: true,
  },
  parserOptions: {
    parser: '@typescript-eslint/parser',
    ecmaVersion: 2018,
    sourceType: 'module',
    ecmaFeatures: {
      jsx: true,
      generators: false,
      objectLiteralDuplicateProperties: false,
    },
  },
  plugins: ['import', '@typescript-eslint', 'typescript-sort-keys'],
  settings: {
    'import/parsers': {
      '@typescript-eslint/parser': ['.ts', '.tsx', '.d.ts'],
    },
    'import/resolver': {
      node: {
        extensions: ['.mjs', '.js', '.json', '.ts', '.d.ts'],
      },
      typescript: {
        alwaysTryTypes: true,
      },
    },
    'import/extensions': ['.js', '.mjs', '.jsx', '.ts', '.tsx', '.d.ts'],
    'import/external-module-folders': ['node_modules', 'node_modules/@types'],
    'import/core-modules': [],
    'import/ignore': [
      'node_modules',
      '\\.(coffee|scss|css|less|hbs|svg|json)$',
    ],
  },
  extends: [
    'plugin:import/recommended',
    'plugin:import/typescript',
    'plugin:typescript-sort-keys/recommended',
    require.resolve('./rules/bestPractices'),
    require.resolve('./rules/errors'),
    require.resolve('./rules/node'),
    require.resolve('./rules/style'),
    require.resolve('./rules/variables'),
    require.resolve('./rules/es6'),
    require.resolve('./rules/import'),
    require.resolve('./rules/strict'),
  ],
  overrides: [
    {
      files: ['*.ts', '*.tsx'],
      rules: {
        // The following rules are enabled in Airbnb config, but are already checked (more thoroughly) by the TypeScript compiler
        // Some of the rules also fail in TypeScript files, for example: https://github.com/typescript-eslint/typescript-eslint/issues/662#issuecomment-507081586
        // Rules are inspired by: https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/src/configs/eslint-recommended.ts
        'constructor-super': 'off',
        'getter-return': 'off',
        'no-const-assign': 'off',
        'no-dupe-args': 'off',
        'no-dupe-class-members': 'off',
        'no-dupe-keys': 'off',
        'no-func-assign': 'off',
        'no-import-assign': 'off',
        'no-new-symbol': 'off',
        'no-obj-calls': 'off',
        'no-redeclare': 'off',
        'no-setter-return': 'off',
        'no-this-before-super': 'off',
        'no-undef': 'off',
        'no-unreachable': 'off',
        'no-unsafe-negation': 'off',
        'valid-typeof': 'off',
        // The following rules are enabled in Airbnb config, but are recommended to be disabled within TypeScript projects
        // See: https://github.com/typescript-eslint/typescript-eslint/blob/13583e65f5973da2a7ae8384493c5e00014db51b/docs/linting/TROUBLESHOOTING.md#eslint-plugin-import
        'import/named': 'off',
        'import/no-named-as-default-member': 'off',
        // Disable `import/no-unresolved`, see README.md for details
        'import/no-unresolved': 'off',
      },
    },
  ],
};