tslint.js

const path = require('path');

module.exports = {
  extends: ['tslint-react', 'tslint-eslint-rules'],
  rulesDirectory: [
    path.join(path.dirname(require.resolve('tslint-consistent-codestyle')), './'),
    path.join(path.dirname(require.resolve('tslint-eslint-rules')), 'dist/rules'),
    path.join(path.dirname(require.resolve('tslint-microsoft-contrib')), './'),
  ],
  rules: { // base on https://github.com/airbnb/javascript/tree/44dbd0bdc41d08eb5de8ad698099ae44240f4b0d
    'prefer-const': true, // 2.1, 13.1
    'no-var-keyword': true, // 2.2
    'object-literal-shorthand': true, // 3.3, 3.4
    'object-shorthand-properties-first': true, // 3.5
    'object-literal-key-quotes': [true, 'as-needed'], // 3.6
    'prefer-array-literal': true, // 4.1
    quotemark: [
      true,
      'single',
      'jsx-double',
    ], // 6.1
    'no-eval': true, // 6.4
    'no-function-constructor-with-string-args': true, // 7.10
    'space-before-function-paren': [
      true,
      {
        anonymous: 'always', // 7.11
        named: 'never', // 19.3
      },
    ],
    'no-parameter-reassignment': true, // 7.12
    align: [
      true,
      'arguments',
      'parameters',
    ], // 7.15
    'ter-prefer-arrow-callback': [true], // 8.1
    'arrow-parens': false, // 8.2
    'ter-arrow-parens': [
      true,
      'as-needed',
      { 'requireForBlockBody': true }
    ], // 8.4
    'no-duplicate-imports': true, // 10.4
    'one-variable-per-declaration': [true, 'ignore-for-loop'], // 13.2
    'no-increment-decrement': true, // 13.6
    'triple-equals': [true, 'allow-null-check'], // 15.1
    'no-boolean-literal-compare': true, // 15.3
    // NOTE(will): This can be reenabled once https://github.com/palantir/tslint/issues/3279 is
    // fixed. Currently fails in conditional JSX because a JSX element is always truthy.
    'strict-boolean-expressions': [ // 15.3
      false,
      'allow-null-union',
      'allow-undefined-union',
      'allow-string',
      'allow-mix',
    ],
    'brace-style': [
      true,
      '1tbs',
      { allowSingleLine: true },
    ], // 16.2
    'no-else-after-return': true, // 16.3
    'comment-format': [true, 'check-space'], // 18.3
    indent: [true, 'space'], // 19.1
    'ter-indent': [
      true,
      2,
      { 'SwitchCase': 1 },
    ], // 19.1
    whitespace: [
      true,
      'check-branch', // 19.3
      'check-decl', // 19.4
      'check-operator', // 19.4
      'check-preblock', // 19.2
    ],
    eofline: true, // 19.5
    'space-in-parens': [true, 'never'], // 19.9
    'array-bracket-spacing': [true, 'never'], // 19.10
    'object-curly-spacing': [true, 'always'], // 19.11
    'ter-max-len': [
      true,
      {
        'code': 100,
        'tabWidth': 2,
        'ignoreStrings': true,
        // NOTE(will): This is currently broken with TS 2.7
        'ignoreTemplateLiterals': true,
      },
    ],
    'trailing-comma': [
      true,
      {
        multiline: 'always',
        singleline: 'never',
      },
    ], // 20.2
    semicolon: [true, 'always', 'ignore-bound-class-methods'], // 21.1
    'no-construct': true, // 22.2, 22.3, 22.6
    radix: true, // 22.3
    'function-name': [
      true,
      {
        'function-regex': /^[a-z$][\w\d]+$/,
        'method-regex': /^[a-z$][\w\d]+$/,
        'private-method-regex': /^[a-z$][\w\d]+$/,
        'protected-method-regex': /^[a-z$][\w\d]+$/,
        'static-method-regex': /^[a-z$][\w\d]+$/,
      }, // 23.1
    ],
    'variable-name': [true, 'check-format', 'allow-pascal-case'], // 23.2
    'no-this-assignment': true, // 23.5
    'jsx-no-multiline-js': false,
    'jsx-no-lambda': false,
    'jsx-boolean-value': false,
    'no-unused-variable': true,
    'no-console': [true, "log", "error"],
  },
};