.eslintrc.js

module.exports = {
  env: {
    browser: true,
    es2021: true,
    node: true,
  },
  extends: [
    'eslint:recommended',
    'plugin:@typescript-eslint/recommended',
    'plugin:astro/recommended',
    'prettier',
  ],
  parser: '@typescript-eslint/parser',
  parserOptions: {
    ecmaVersion: 'latest',
    sourceType: 'module',
  },
  plugins: ['react', '@typescript-eslint'],
  rules: {
    // ESLint: https://eslint.org/docs/latest/rules/
    // TypeScript: https://typescript-eslint.io/rules/
    // Astro: https://ota-meshi.github.io/eslint-plugin-astro/rules/
  },
  overrides: [
    {
      files: ['*.*'],
      excludedFiles: ['*.astro'],
      extends: ['plugin:react/recommended'],
      rules: {
        // React: https://github.com/jsx-eslint/eslint-plugin-react#list-of-supported-rules
      },
      settings: {
        react: {
          version: 'detect',
        },
      },
    },
    {
      files: ['*.astro'],
      parser: 'astro-eslint-parser',
      parserOptions: {
        parser: '@typescript-eslint/parser',
        extraFileExtensions: ['.astro'],
      },
    },
  ],
}