.eslintrc.js

/* eslint-disable */
module.exports = {
  parser: '@typescript-eslint/parser',
  extends: ['eslint:recommended', 'plugin:@typescript-eslint/eslint-recommended'],
  parserOptions: {
    ecmaVersion: 6,
    sourceType: 'module',
    ecmaFeatures: {
      modules: true,
    },
  },
  plugins: ['@typescript-eslint'],
  rules: {
    'array-bracket-spacing': 'error',
    'array-callback-return': 'error',
    'arrow-body-style': ['error', 'as-needed'],
    'arrow-parens': 'error',
    'arrow-spacing': 'error',
    'block-spacing': 'error',
    'brace-style': ['error', '1tbs'],
    'comma-dangle': ['error', 'always-multiline'],
    'comma-spacing': 'error',
    'comma-style': 'error',
    'computed-property-spacing': 'error',
    'dot-notation': 'error',
    'eol-last': 'error',
    'eqeqeq': 'error',
    'function-paren-newline': 'error',
    'func-call-spacing': 'error',
    'generator-star-spacing': ['error', 'after'],
    'id-length': 'off',
    'implicit-arrow-linebreak': 'error',
    'key-spacing': 'error',
    'keyword-spacing': 'error',
    'max-depth': ["error", 4],
    'max-len': ['error', {code: 120, ignoreStrings: true, ignoreTemplateLiterals: true, ignoreRegExpLiterals: true, ignoreUrls: true}],
    'max-lines-per-function': ['error', {max: 30, skipBlankLines: true, skipComments: true}],
    'max-params': ["error", 5],
    'new-cap': ['error', {"capIsNew": false}],
    'newline-per-chained-call': ["error", {"ignoreChainWithDepth": 3}],
    'no-array-constructor': 'error',
    'no-async-promise-executor': 'error',
    'no-case-declarations': 'error',
    'no-console': 'off',
    'no-const-assign': 'error',
    'no-debugger': 'off',
    'no-dupe-class-members': 'error',
    'no-duplicate-imports': 'error',
    'no-eval': 'error',
    'no-ex-assign': 'error',
    'no-extend-native': 'error',
    'no-iterator': 'error',
    'no-mixed-operators': 'error',
    'no-multi-assign': 'error',
    'no-multi-spaces': 'error',
    'no-multiple-empty-lines': 'error',
    'no-nested-ternary': 'off',
    'no-new-func': 'error',
    'no-new-object': 'error',
    'no-param-reassign': 'error',
    'no-prototype-builtins': 'error',
    'no-restricted-globals': [
      "error",
      {
        "name": "location",
        "message": "Please ensure you are using the correct variable or use 'window.location' if necessary."
      },
      {
        "name": "numeral",
        "message": "Please import numeral from 'numeral' to use this library"
      },
      {
        "name": "isNaN",
        "message": "Please use `Number.isNaN` instead."
      },
      {
        "name": "isFinite",
        "message": "Please use `Number.isFinite` instead."
      }
    ],
    'no-restricted-properties': [
      'error',
      {
        'object': 'Math',
        'property': 'pow',
        'message': 'Use exponentiation operator `**` when calculating exponentiations.'
      }
    ],
    'no-restricted-syntax': 'error',
    'no-return-await': 'error',
    'no-throw-literal': 'error',
    'no-trailing-spaces': 'error',
    'no-undef': 'off',
    'no-underscore-dangle': 'error',
    'no-unneeded-ternary': 'error',
    'no-useless-computed-key': 'error',
    'no-useless-escape': 'error',
    'no-var': 'error',
    'no-whitespace-before-property': 'error',
    'object-curly-spacing': ['error', 'never'],
    'object-shorthand': 'error',
    'one-var': ['error', 'never'],
    'operator-linebreak': ['error', 'before', {'overrides': { '=': 'after'}}],
    'padded-blocks': ['error', 'always', {'allowSingleLineBlocks': true}],
    'padding-line-between-statements': ['error', {blankLine: "always", prev: ["const", "let", "var"], next: "*"}, {blankLine: "any", prev: ["const", "let", "var"], next: ["const", "let", "var"]}],
    'prefer-arrow-callback': 'error',
    'prefer-const': 'error',
    'prefer-rest-params': 'error',
    'prefer-spread': 'error',
    'prefer-template': 'error',
    'quote-props': ['error', 'as-needed'],
    'quotes': ['error', 'single'],
    'semi-spacing': 'error',
    'space-before-blocks': 'error',
    'space-before-function-paren': [
      'error',
      {
        'anonymous': 'always',
        'named': 'never',
        'asyncArrow': 'always'
      }
    ],
    'space-in-parens': 'error',
    'space-infix-ops': 'error',
    'spaced-comment': 'error',
    'template-curly-spacing': 'error',

    // Typescript plugin requires turning off the base-eslint versions of some of these rules
    'camelcase': 'off',
    'indent': 'off',
    'no-unused-vars': 'off',
    'no-useless-constructor': 'off',
    'semi': 'off',
    '@typescript-eslint/array-type': 'error',
    '@typescript-eslint/indent': ['error', 4],
    '@typescript-eslint/member-delimiter-style': ['error', {multiline: {delimiter: 'none'}, singleline: {delimiter: 'comma'}}],
    '@typescript-eslint/no-misused-new': 'error',
    '@typescript-eslint/no-require-imports': 'error',
    '@typescript-eslint/no-unused-vars': ['error', {vars: "all", args: 'after-used', ignoreRestSiblings: true}],
    '@typescript-eslint/no-use-before-define': ["error", {"functions": false, "classes": false}],
    '@typescript-eslint/no-useless-constructor': 'error',
    '@typescript-eslint/no-var-requires': 'error',
    '@typescript-eslint/semi': ['error', 'always'],
  }
};