.eslintrc.js

module.exports = {
  env: {
    es2020: true,
    node: true,
    jest: true,
  },
  globals: {
    'jest/globals': true,
  },
  extends: ['eslint:recommended', 'prettier'],
  parser: '@typescript-eslint/parser',
  parserOptions: {
    ecmaVersion: 11,
    sourceType: 'module',
  },
  plugins: ['@typescript-eslint', 'jest'],
  rules: {
    'react/display-name': 'off',
    'no-unused-vars': 'off',
    'no-void': 'off',
    'linebreak-style': 'off',
    'padding-line-between-statements': [
      'error',
      { blankLine: 'always', prev: 'const', next: 'function' },
      { blankLine: 'always', prev: 'const', next: 'return' },
      { blankLine: 'always', prev: 'const', next: 'if' },
      { blankLine: 'always', prev: 'const', next: 'try' },
      { blankLine: 'always', prev: 'const', next: 'expression' },
      { blankLine: 'always', prev: '*', next: 'return' },
    ],
  },
  overrides: [
    {
      files: ['**/*.ts'],
      parser: '@typescript-eslint/parser',
      rules: {
        'no-undef': 'off',
      },
    },
  ],
};