.eslintrc.js

/** @type {import('eslint').Linter.Config} */
module.exports = {
  root: true,
  env: {
    browser: true,
    amd: true,
    node: true,
  },
  parser: '@typescript-eslint/parser',
  parserOptions: {
    ecmaVersion: 'latest',
    sourceType: 'module',
    ecmaFeatures: {
      jsx: true,
    },
    project: './tsconfig.json',
  },
  settings: {
    react: {
      version: 'detect',
    },
    'import/extensions': ['.js', '.jsx', '.ts', '.tsx'],
  },
  extends: [
    'eslint:recommended',
    'eslint:recommended',
    // TODO: opt-in to stricter ruleset in dedicated PR
    // 'plugin:@typescript-eslint/strict-type-checked',
    'plugin:@typescript-eslint/stylistic-type-checked',
    'plugin:import/recommended',
    'plugin:import/typescript',
    'plugin:react/recommended',
    'plugin:react-hooks/recommended',
    'plugin:jsx-a11y/recommended',
    'plugin:@next/next/recommended',
    'plugin:prettier/recommended',
  ],
  reportUnusedDisableDirectives: true,
  rules: {
    curly: 'error',
    'prettier/prettier': ['error', {}, { usePrettierrc: true }],
    'react/prop-types': 'off',
    'react/react-in-jsx-scope': 'off',
    'react/no-unescaped-entities': 'off',
    'react/display-name': 'off',
    'jsx-a11y/anchor-is-valid': 'off',
    'import/no-unresolved': 0,
    '@typescript-eslint/no-unused-vars': ['error'],
    '@typescript-eslint/explicit-function-return-type': 'off',
    '@typescript-eslint/explicit-module-boundary-types': 'off',
    '@typescript-eslint/no-explicit-any': 'off',
    '@typescript-eslint/no-namespace': 'off',
    '@typescript-eslint/ban-ts-comment': [
      'error',
      { 'ts-ignore': 'allow-with-description' },
    ],
    '@typescript-eslint/ban-types': [
      'error',
      {
        extendDefaults: true,
        types: {
          '{}': false,
        },
      },
    ],
    '@typescript-eslint/consistent-type-definitions': 'off',
    '@typescript-eslint/prefer-nullish-coalescing': 'off',
    '@typescript-eslint/consistent-indexed-object-style': 'off',
    '@typescript-eslint/array-type': 'off',
    '@typescript-eslint/non-nullable-type-assertion-style': 'off',
    'import/order': [
      'error',
      {
        groups: [
          'builtin',
          'external',
          'internal',
          'parent',
          'sibling',
          'index',
        ],
        pathGroups: [
          {
            pattern: 'react',
            group: 'external',
            position: 'before',
          },
          {
            pattern: 'context/**',
            group: 'internal',
            position: 'after',
          },
          {
            pattern: 'util/**',
            group: 'internal',
            position: 'after',
          },
          {
            pattern: 'components/**',
            group: 'internal',
            position: 'after',
          },
        ],
        pathGroupsExcludedImportTypes: ['react'],
        'newlines-between': 'always',
        alphabetize: {
          order: 'asc',
          caseInsensitive: true,
        },
      },
    ],
  },
}