.eslintrc.js

module.exports = {
  extends: ['erb', 'prettier'],
  rules: {
    eqeqeq: 'warn',
    // A temporary hack related to IDE not resolving correct package.json
    'import/no-extraneous-dependencies': 'off',
    'import/prefer-default-export': 'off',
    'consistent-return': 'off',
    'no-console': 'off',
    'no-else-return': 'warn',
    'no-plusplus': ['warn', { allowForLoopAfterthoughts: true }],
    'no-restricted-syntax': ['error', 'WithStatement'],
    'prefer-destructuring': 'off',
    'react/button-has-type': 'off',
    'react/destructuring-assignment': 'off',
    'react/jsx-curly-newline': 'off',
    'react/no-array-index-key': 'warn',
    'prettier/prettier': 'error',
    'react/static-property-placement': ['warn', 'static public field'],
    '@typescript-eslint/no-empty-interface': 'off',
    // eslint-disable-next-line no-dupe-keys
    'prettier/prettier': [
      'error',
      {
        endOfLine: 'auto',
      },
    ],
    '@typescript-eslint/naming-convention': [
      'error',
      {
        selector: 'default',
        format: ['camelCase', 'PascalCase'],
        leadingUnderscore: 'allow',
        trailingUnderscore: 'allow',
      },
      {
        selector: 'variable',
        format: ['camelCase', 'UPPER_CASE', 'PascalCase'],
        leadingUnderscore: 'allow',
        trailingUnderscore: 'allow',
      },
      {
        selector: 'typeLike',
        format: ['PascalCase'],
      },
    ],

    'jsx-a11y/click-events-have-key-events': 'off',
    'jsx-a11y/no-static-element-interactions': 'off',
  },
  plugins: ['react', '@typescript-eslint', 'prettier', 'import'],
  parserOptions: {
    ecmaVersion: 2020,
    sourceType: 'module',
    project: './tsconfig.json',
    tsconfigRootDir: __dirname,
    createDefaultProgram: true,
  },
  settings: {
    'import/resolver': {
      // See https://github.com/benmosher/eslint-plugin-import/issues/1396#issuecomment-575727774 for line below
      node: {},
      webpack: {
        config: require.resolve('./.erb/configs/webpack.config.eslint.js'),
      },
    },
    'import/parsers': {
      '@typescript-eslint/parser': ['.ts', '.tsx'],
    },
  },
};