.eslintrc.js

module.exports = {
  parser: '@typescript-eslint/parser',
  parserOptions: {
    project: 'tsconfig.json',
    tsconfigRootDir: __dirname,
    sourceType: 'module'
  },
  plugins: ['@typescript-eslint/eslint-plugin'],
  extends: ['plugin:@typescript-eslint/recommended'],
  root: true,
  env: {
    node: true,
    jest: true
  },
  ignorePatterns: ['.eslintrc.js'],
  rules: {
    '@typescript-eslint/ban-types': 'off',
    '@typescript-eslint/explicit-function-return-type': 'off',
    '@typescript-eslint/explicit-module-boundary-types': 'off',
    '@typescript-eslint/interface-name-prefix': 'off',
    '@typescript-eslint/no-explicit-any': 'off',
    '@typescript-eslint/no-var-requires': 'off',
    'max-len': [1, { code: 160 }],
    'function-paren-newline': 'off',
    'accessor-pairs': 2,
    'arrow-spacing': [2, { before: true, after: true }],
    'block-spacing': [2, 'always'],
    'brace-style': [2, '1tbs', { allowSingleLine: true }],
    camelcase: [0, { properties: 'never' }],
    'comma-dangle': [2, 'never'],
    'comma-spacing': [2, { before: false, after: true }],
    'comma-style': [2, 'last'],
    'constructor-super': 2,
    curly: [2, 'multi-line'],
    'dot-location': [2, 'property'],
    'eol-last': 2,
    eqeqeq: [2, 'allow-null'],
    'func-call-spacing': [2, 'never'],
    'handle-callback-err': [2, '^(err|error)$'],
    indent: [2, 2, { SwitchCase: 1 }],
    'key-spacing': [2, { beforeColon: false, afterColon: true }],
    'keyword-spacing': [2, { before: true, after: true }],
    'new-cap': [2, { newIsCap: true, capIsNew: false }],
    'new-parens': 2,
    'no-array-constructor': 2,
    'no-caller': 2,
    'no-class-assign': 2,
    'no-cond-assign': 2,
    'no-const-assign': 2,
    'no-constant-condition': [2, { checkLoops: false }],
    'no-control-regex': 2,
    'no-debugger': 2,
    'no-delete-var': 2,
    'no-dupe-args': 2,
    'no-dupe-class-members': 2,
    'no-dupe-keys': 2,
    'no-duplicate-case': 2,
    'no-duplicate-imports': 2,
    'no-empty-character-class': 2,
    'no-empty-pattern': 2,
    'no-eval': 2,
    'no-ex-assign': 2,
    'no-extend-native': 2,
    'no-extra-bind': 2,
    'no-extra-boolean-cast': 2,
    'no-extra-parens': [2, 'functions'],
    'no-fallthrough': 2,
    'no-floating-decimal': 2,
    'no-func-assign': 2,
    'no-global-assign': 2,
    'no-implied-eval': 2,
    'no-inner-declarations': [2, 'functions'],
    'no-invalid-regexp': 2,
    'no-irregular-whitespace': 2,
    'no-iterator': 2,
    'no-label-var': 2,
    'no-labels': [2, { allowLoop: false, allowSwitch: false }],
    'no-lone-blocks': 2,
    'no-mixed-spaces-and-tabs': 2,
    'no-multi-spaces': 2,
    'no-multi-str': 2,
    'no-multiple-empty-lines': [2, { max: 1 }],
    'no-native-reassign': 2,
    'no-negated-in-lhs': 2,
    'no-new': 2,
    'no-new-func': 2,
    'no-new-object': 2,
    'no-new-require': 2,
    'no-new-symbol': 2,
    'no-new-wrappers': 2,
    'no-obj-calls': 2,
    'no-octal': 2,
    'no-octal-escape': 2,
    'no-path-concat': 2,
    'no-proto': 2,
    'no-redeclare': 2,
    'no-regex-spaces': 2,
    'no-return-assign': [2, 'except-parens'],
    'no-self-assign': 2,
    'no-self-compare': 2,
    'no-sequences': 2,
    'no-shadow-restricted-names': 2,
    'no-sparse-arrays': 2,
    'no-tabs': 2,
    'no-template-curly-in-string': 2,
    'no-this-before-super': 2,
    'no-throw-literal': 2,
    'no-trailing-spaces': 2,
    'no-undef': 2,
    'no-undef-init': 2,
    'no-unexpected-multiline': 2,
    'no-unmodified-loop-condition': 2,
    'no-unneeded-ternary': [2, { defaultAssignment: false }],
    'no-unreachable': 2,
    'no-unsafe-finally': 2,
    'no-unsafe-negation': 2,
    'no-unused-vars': 'off',
    '@typescript-eslint/no-unused-vars': ['error'],
    'no-useless-call': 2,
    'no-useless-computed-key': 2,
    'no-useless-constructor': 'off',
    '@typescript-eslint/no-useless-constructor': ['error'],
    '@typescript-eslint/no-inferrable-types': 'off',
    'no-useless-escape': 2,
    'no-useless-rename': 2,
    'no-whitespace-before-property': 2,
    'no-with': 2,
    'object-property-newline': [2, { allowMultiplePropertiesPerLine: true }],
    'one-var': [2, { initialized: 'never' }],
    'operator-linebreak': [2, 'after', { overrides: { '?': 'before', ':': 'before' } }],
    'padded-blocks': [2, 'never'],
    quotes: [2, 'single', { avoidEscape: true, allowTemplateLiterals: true }],
    'rest-spread-spacing': [2, 'never'],
    'semi': [2, 'always'],
    'semi-spacing': [2, { before: false, after: true }],
    'space-before-blocks': [2, 'always'],
    'space-before-function-paren': 'off',
    'space-in-parens': [2, 'never'],
    'space-infix-ops': 2,
    'space-unary-ops': [2, { words: true, nonwords: false }],
    'spaced-comment': [
      2,
      'always',
      { line: { markers: ['*package', '!', ','] }, block: { balanced: true, markers: ['*package', '!', ','], exceptions: ['*'] } }
    ],
    'template-curly-spacing': [2, 'never'],
    'unicode-bom': [2, 'never'],
    'use-isnan': 2,
    'valid-typeof': 2,
    'wrap-iife': [2, 'any', { functionPrototypeMethods: true }],
    'yield-star-spacing': [2, 'both'],
    yoda: [2, 'never']
  }
}