.eslintrc.js

module.exports = {
  root: true,
  "ignorePatterns": [
    "**/*.*",
    "**/*.js",
    "!**/*.ts",
    "node_modules",
    "/bin",
    "/lib",
    "tests/data",
    "tests/generate-data/src",
    "*vendor*",
  ],
  env: {
    commonjs: true,
    node: true,
    es6: true,
  },
  parser: '@typescript-eslint/parser',
  parserOptions: {
    project: ['./src/cli/tsconfig.json', './src/lib/tsconfig.json', './tests/tsconfig.json'],
  },
  plugins: ['prettier', '@typescript-eslint'],
  extends: [
    'eslint:recommended',
    'plugin:@typescript-eslint/eslint-recommended',
    'plugin:@typescript-eslint/recommended',
    'prettier/@typescript-eslint',
    'plugin:prettier/recommended',
  ],
  rules: {
    'func-style': ['error', 'declaration'],
    'object-shorthand': 'error',
    'prefer-arrow-callback': 'error',
    'prefer-const': 'error',
    'padding-line-between-statements': [
      'error',
      { blankLine: 'always', prev: '*', next: 'return' },
      { blankLine: 'always', prev: ['const', 'let'], next: '*' },
      { blankLine: 'any', prev: ['const', 'let'], next: ['const', 'let'] },
    ],
    'no-console': 'off',
    yoda: 'error',
    // TypeScript specific
    '@typescript-eslint/explicit-function-return-type': [
      'error',
      { allowExpressions: true, allowTypedFunctionExpressions: true },
    ],
    '@typescript-eslint/no-use-before-define': [
      'error',
      { functions: false, classes: true, variables: true, typedefs: true },
    ],
    '@typescript-eslint/explicit-member-accessibility': ['error', { accessibility: 'no-public' }],
  },
};