.eslintrc.js

module.exports = {
  "root": true,
  env: {
    es6: true,
    node: true,
    jasmine: true,
    protractor: true,
  },
  extends: ['eslint:recommended', 'prettier'],
  plugins: ['jasmine', 'protractor'],
  rules: {
    'brace-style': ['error', '1tbs'],
    'capitalized-comments': ['error', 'never'],
    complexity: 'off',
    'constructor-super': 'error',
    curly: 'error',
    'eol-last': 'error',
    eqeqeq: ['error', 'smart'],
    'guard-for-in': 'error',
    'id-match': 'error',
    'max-classes-per-file': ['error', 1],
    'new-parens': 'error',
    'no-bitwise': 'error',
    'no-caller': 'error',
    'no-cond-assign': 'error',
    'no-console': 'off',
    'no-debugger': 'error',
    'no-duplicate-case': 'error',
    'no-duplicate-imports': 'error',
    'no-empty': 'error',
    'no-eval': 'error',
    'no-extra-bind': 'error',
    'no-fallthrough': 'off',
    'no-invalid-this': 'off',
    'no-new-func': 'error',
    'no-new-wrappers': 'error',
    'no-redeclare': 'error',
    'no-return-await': 'error',
    'no-sequences': 'error',
    'no-sparse-arrays': 'error',
    'no-template-curly-in-string': 'error',
    'no-throw-literal': 'error',
    'no-trailing-spaces': 'error',
    'no-undef-init': 'error',
    'no-underscore-dangle': 'error',
    'no-unsafe-finally': 'error',
    'no-unused-labels': 'error',
    'no-var': 'error',
    'object-shorthand': 'error',
    'one-var': ['error', 'never'],
    'prefer-arrow/prefer-arrow-functions': 'off',
    'prefer-const': 'error',
    'prefer-object-spread': 'error',
    radix: 'error',
    'space-in-parens': ['error', 'never'],
    'spaced-comment': [
      'error',
      'always',
      {
        markers: ['/'],
      },
    ],
    'use-isnan': 'error',
    'valid-typeof': 'off',

  },
  overrides: [
    {
      "files": ["src", "spec", "examples/typescript"],
      parser: '@typescript-eslint/parser',
      parserOptions: {
        project: ['tsconfig.json', 'spec/tsconfig.json', 'examples/typescript/tsconfig.json'],
        sourceType: 'module',
      },
      plugins: ['@typescript-eslint'],
      extends: ['eslint:recommended', 'plugin:@typescript-eslint/recommended', 'prettier'],

      rules: {
        '@typescript-eslint/adjacent-overload-signatures': 'error',
        '@typescript-eslint/array-type': [
          'error',
          {
            default: 'array',
          },
        ],
        '@typescript-eslint/ban-types': [
          'error',
          {
            types: {
              Object: {
                message: 'Avoid using the `Object` type. Did you mean `object`?',
              },
              Function: {
                message: 'Avoid using the `Function` type. Prefer a specific function type, like `() => void`.',
              },
              Boolean: {
                message: 'Avoid using the `Boolean` type. Did you mean `boolean`?',
              },
              Number: {
                message: 'Avoid using the `Number` type. Did you mean `number`?',
              },
              String: {
                message: 'Avoid using the `String` type. Did you mean `string`?',
              },
              Symbol: {
                message: 'Avoid using the `Symbol` type. Did you mean `symbol`?',
              },
            },
          },
        ],
        '@typescript-eslint/consistent-type-assertions': 'error',
        '@typescript-eslint/dot-notation': 'error',
        '@typescript-eslint/explicit-module-boundary-types': 'off',
        '@typescript-eslint/no-empty-function': 'error',
        '@typescript-eslint/no-empty-interface': 'error',
        '@typescript-eslint/no-explicit-any': 'off',
        '@typescript-eslint/no-extraneous-class': 'error',
        '@typescript-eslint/no-inferrable-types': 'error',
        '@typescript-eslint/no-misused-new': 'error',
        '@typescript-eslint/no-namespace': 'error',
        '@typescript-eslint/no-parameter-properties': 'off',
        '@typescript-eslint/no-shadow': [
          'error',
          {
            hoist: 'all',
          },
        ],
        '@typescript-eslint/no-this-alias': 'error',
        '@typescript-eslint/no-unnecessary-boolean-literal-compare': 'error',
        '@typescript-eslint/no-unnecessary-qualifier': 'error',
        '@typescript-eslint/no-unused-expressions': 'error',
        '@typescript-eslint/no-unused-vars': 'error',
        '@typescript-eslint/no-use-before-define': 'off',
        '@typescript-eslint/no-var-requires': 'off',
        '@typescript-eslint/prefer-for-of': 'error',
        '@typescript-eslint/prefer-function-type': 'error',
        '@typescript-eslint/prefer-namespace-keyword': 'error',
        '@typescript-eslint/triple-slash-reference': [
          'error',
          {
            path: 'always',
            types: 'prefer-import',
            lib: 'always',
          },
        ],
        '@typescript-eslint/type-annotation-spacing': 'error',
        '@typescript-eslint/unbound-method': 'error',
        '@typescript-eslint/unified-signatures': 'error',
      },
    },
  ],
}