.eslintrc.cjs

module.exports = {
  root: true,
  extends: [
    'eslint:recommended',
    'plugin:@typescript-eslint/recommended',
    'plugin:svelte/recommended',
    'prettier',
  ],
  parser: '@typescript-eslint/parser',
  plugins: ['@typescript-eslint'],
  parserOptions: {
    sourceType: 'module',
    ecmaVersion: 2020,
    extraFileExtensions: ['.svelte'],
  },
  env: {
    browser: true,
    es2017: true,
    node: true,
  },
  overrides: [
    {
      files: ['*.svelte'],
      parser: 'svelte-eslint-parser',
      parserOptions: {
        parser: '@typescript-eslint/parser',
      },
    },
    {
      files: ['*.js'],
      rules: {
        '@typescript-eslint/explicit-module-boundary-types': 0,
      },
    },
  ],
  ignorePatterns: ['*.cjs'],
  settings: {
    'svelte3/typescript': () => require('typescript'),
    'svelte3/ignore-styles': () => true,
  },
  rules: {
    indent: ['error', 2, { SwitchCase: 1 }],
    'func-style': ['error', 'declaration', { allowArrowFunctions: false }],
    'prefer-arrow-callback': 'error',
    'no-nested-ternary': ['error'],
    'comma-dangle': 'off',
    'svelte/no-at-html-tags': 'off',
    '@typescript-eslint/comma-dangle': ['error', 'only-multiline'],
    '@typescript-eslint/no-unused-vars': 'error',
    '@typescript-eslint/consistent-type-definitions': ['error', 'interface'],
  },
};