eslint.config.js

import js from '@eslint/js';
import tsPlugin from '@typescript-eslint/eslint-plugin';
import tsParser from '@typescript-eslint/parser';
import importPlugin from 'eslint-plugin-import';
import prettierPlugin from 'eslint-plugin-prettier';
import prettierConfig from 'eslint-config-prettier';

export default [
  {
    ignores: ['dist', 'node_modules', '*.config.js'],
  },
  {
    files: ['src/**/*.ts'],
    languageOptions: {
      parser: tsParser,
      parserOptions: {
        ecmaVersion: 'latest',
        sourceType: 'module',
        project: './tsconfig.json',
      },
      globals: {
        window: 'readonly',
        document: 'readonly',
        navigator: 'readonly',
        console: 'readonly',
        clearTimeout: 'readonly',
        setTimeout: 'readonly',
        clearInterval: 'readonly',
        setInterval: 'readonly',
        customElements: 'readonly',
        structuredClone: 'readonly',
      },
    },
    plugins: {
      '@typescript-eslint': tsPlugin,
      import: importPlugin,
      prettier: prettierPlugin,
    },
    rules: {
      ...js.configs.recommended.rules,
      ...tsPlugin.configs.recommended.rules,
      ...prettierConfig.rules,
      // TypeScript's compiler already catches undefined references in .ts files,
      // so no-undef produces false positives on TS interfaces, enums and globals.
      'no-undef': 'off',
      'no-console': ['warn', { allow: ['warn', 'error', 'info'] }],
      '@typescript-eslint/explicit-module-boundary-types': 'off',
      '@typescript-eslint/no-explicit-any': 'warn',
      '@typescript-eslint/no-unused-vars': ['error', { argsIgnorePattern: '^_' }],
      'import/no-unresolved': 'off',
      'prettier/prettier': 'error',
    },
  },
  {
    files: ['**/*.js'],
    languageOptions: {
      ecmaVersion: 'latest',
      sourceType: 'module',
      globals: {
        console: 'readonly',
      },
    },
    rules: {
      ...js.configs.recommended.rules,
    },
  },
];