module.exports = {

  globals: {},

  extends: 'eslint:recommended',

  rules: {
    // Possible Errors https://eslint.org/docs/rules/#possible-errors
    'no-await-in-loop': 'warn',
    'no-console': 'warn',
    'no-constant-condition': ['error', { checkLoops: false }],
    'no-dupe-else-if': 'error',
    'no-extra-parens': ['error', { conditionalAssign: false }],
    'no-import-assign': 'error',
    'no-setter-return': 'error',
    'no-template-curly-in-string': 'error',
    'valid-typeof': ['error', { requireStringLiterals: true }],

    // Best Practices https://eslint.org/docs/rules/#best-practices
    'accessor-pairs': 'off',
    'array-callback-return': ['error', { allowImplicit: false }],
    'block-scoped-var': 'error',
    'class-methods-use-this': 'error',
    complexity: ['warn', { max: 5 }],
    'consistent-return': ['error', { treatUndefinedAsUnspecified: false }],
    curly: ['error', 'multi'],
    'default-case': ['error', { commentPattern: '^no\\sdefault' }],
    'default-param-last': 'error',
    'dot-location': ['error', 'property'],
    'dot-notation': ['error', { allowKeywords: true }],
    eqeqeq: ['error', 'always'],
    'grouped-accessor-pairs': ['error', 'getBeforeSet'],
    'guard-for-in': 'error',
    'max-classes-per-file': ['error', 1],
    'no-alert': 'error',
    'no-caller': 'error',
    'no-constructor-return': 'error',
    'no-div-regex': 'error',
    'no-else-return': ['error', { allowElseIf: false }],
    'no-empty-function': 'error',
    'no-eq-null': 'error',
    'no-eval': ['error', { allowIndirect: false }],
    'no-extend-native': 'error',
    'no-extra-bind': 'error',
    'no-extra-label': 'error',
    'no-fallthrough': ['error', { commentPattern: 'break[\\s\\w]*omitted' }],
    'no-floating-decimal': 'error',
    'no-implicit-coercion': 'error',
    'no-implicit-globals': 'error',
    'no-implied-eval': 'error',
    'no-invalid-this': 'error',
    'no-iterator': 'error',
    'no-labels': 'off',
    'no-lone-blocks': 'error',
    'no-loop-func': 'error',
    'no-magic-numbers': ['error', { enforceConst: true, ignoreArrayIndexes: true, detectObjects: false }],
    'no-multi-spaces': 'error',
    'no-multi-str': 'error',
    'no-new': 'error',
    'no-new-func': '', // disallow `new` operators with the `Function` object
    'no-new-wrappers': '', // disallow `new` operators with the `String`, `Number`, and `Boolean` objects
    'no-octal-escape': '', // disallow octal escape sequences in string literals
    'no-param-reassign': '', // disallow reassigning `function` parameters
    'no-proto': 'error',
    'no-restricted-properties': '', // disallow certain properties on certain objects
    'no-return-assign': '', // disallow assignment operators in `return` statements
    'no-return-await': 'error',
    'no-script-url': '', // disallow `javascript:` urls
    'no-self-compare': 'error',
    'no-sequences': '', // disallow comma operators
    'no-throw-literal': '', // disallow throwing literals as exceptions
    'no-unmodified-loop-condition': '', // disallow unmodified loop conditions
    'no-unused-expressions': 'error',
    'no-useless-call': '', // disallow unnecessary calls to `.call()` and `.apply()`
    'no-useless-concat': 'error',
    'no-useless-return': 'error',
    'no-void': '', // disallow `void` operators
    'no-warning-comments': '', // disallow specified warning terms in comments
    'prefer-named-capture-group': '', // enforce using named capture group in regular expression
    'prefer-promise-reject-errors': '', // require using Error objects as Promise rejection reasons
    'prefer-regex-literals': '', // disallow use of the `RegExp` constructor in favor of regular expression literals
    radix: '', // enforce the consistent use of the radix argument when using `parseInt()`
    'require-await': 'error',
    'require-unicode-regexp': '', // enforce the use of `u` flag on RegExp
    'vars-on-top': 'error',
    'wrap-iife': '', // require parentheses around immediate `function` invocations
    yoda: '', // require or disallow "Yoda" conditions
    // ## Strict Mode
    //     These rules relate to strict mode directives:
    strict: ['error', 'safe'],
    // ## Variables
    //     These rules relate to variable declarations:
    'init-declarations': '', // require or disallow initialization in variable declarations
    'no-label-var': '', // disallow labels that share a name with a variable
    'no-restricted-globals': '', // disallow specified global variables
    'no-shadow': '', // disallow variable declarations from shadowing variables declared in the outer scope
    'no-undef-init': '', // disallow initializing variables to `undefined`
    'no-undefined': '', // disallow the use of `undefined` as an identifier
    'no-use-before-define': '', // disallow the use of variables before they are defined
    // ## Node.js and CommonJS
    //     These rules relate to code running in Node.js, or in browsers with CommonJS:
    'callback-return': '', // require `return` statements after callbacks
    'global-require': '', // require `require()` calls to be placed at top-level module scope
    'handle-callback-err': '', // require error handling in callbacks
    'no-buffer-constructor': '', // disallow use of the `Buffer()` constructor
    'no-mixed-requires': '', // disallow `require` calls to be mixed with regular variable declarations
    'no-new-require': '', // disallow `new` operators with calls to `require`
    'no-path-concat': '', // disallow string concatenation with `__dirname` and `__filename`
    'no-process-env': '', // disallow the use of `process.env`
    'no-process-exit': '', // disallow the use of `process.exit()`
    'no-restricted-modules': '', // disallow specified modules when loaded by `require`
    'no-sync': '', // disallow synchronous methods
    // ## Stylistic Issues
    //     These rules relate to style guidelines, and are therefore quite subjective:
    'array-bracket-newline': '', // enforce linebreaks after opening and before closing array brackets
    'array-bracket-spacing': '', // enforce consistent spacing inside array brackets
    'array-element-newline': '', // enforce line breaks after each array element
    'block-spacing': '', // disallow or enforce spaces inside of blocks after opening block and before closing block
    'brace-style': '', // enforce consistent brace style for blocks
    camelcase: '', // enforce camelcase naming convention
    'capitalized-comments': '', // enforce or disallow capitalization of the first letter of a comment
    'comma-dangle': '', // require or disallow trailing commas
    'comma-spacing': '', // enforce consistent spacing before and after commas
    'comma-style': '', // enforce consistent comma style
    'computed-property-spacing': '', // enforce consistent spacing inside computed property brackets
    'consistent-this': '', // enforce consistent naming when capturing the current execution context
    'eol-last': '', // require or disallow newline at the end of files
    'func-call-spacing': '', // require or disallow spacing between function identifiers and their invocations
    'func-name-matching': '', // require function names to match the name of the variable or property to which they are assigned
    'func-names': '', // require or disallow named `function` expressions
    'func-style': '', // enforce the consistent use of either `function` declarations or expressions
    'function-call-argument-newline': '', // enforce line breaks between arguments of a function call
    'function-paren-newline': '', // enforce consistent line breaks inside function parentheses
    'id-blacklist': '', // disallow specified identifiers
    'id-length': '', // enforce minimum and maximum identifier lengths
    'id-match': '', // require identifiers to match a specified regular expression
    'implicit-arrow-linebreak': '', // enforce the location of arrow function bodies
    indent: ['error', 2],
    'jsx-quotes': '', // enforce the consistent use of either double or single quotes in JSX attributes
    'key-spacing': '', // enforce consistent spacing between keys and values in object literal properties
    'keyword-spacing': '', // enforce consistent spacing before and after keywords
    'line-comment-position': '', // enforce position of line comments
    'linebreak-style': '', // enforce consistent linebreak style
    'lines-around-comment': '', // require empty lines around comments
    'lines-between-class-members': '', // require or disallow an empty line between class members
    'max-depth': '', // enforce a maximum depth that blocks can be nested
    'max-len': '', // enforce a maximum line length
    'max-lines': '', // enforce a maximum number of lines per file
    'max-lines-per-function': '', // enforce a maximum number of line of code in a function
    'max-nested-callbacks': '', // enforce a maximum depth that callbacks can be nested
    'max-params': '', // enforce a maximum number of parameters in function definitions
    'max-statements': '', // enforce a maximum number of statements allowed in function blocks
    'max-statements-per-line': '', // enforce a maximum number of statements allowed per line
    'multiline-comment-style': '', // enforce a particular style for multiline comments
    'multiline-ternary': '', // enforce newlines between operands of ternary expressions
    'new-cap': '', // require constructor names to begin with a capital letter
    'new-parens': '', // enforce or disallow parentheses when invoking a constructor with no arguments
    'newline-per-chained-call': '', // require a newline after each call in a method chain
    'no-array-constructor': '', // disallow `Array` constructors
    'no-bitwise': '', // disallow bitwise operators
    'no-continue': '', // disallow `continue` statements
    'no-inline-comments': '', // disallow inline comments after code
    'no-lonely-if': '', // disallow `if` statements as the only statement in `else` blocks
    'no-mixed-operators': '', // disallow mixed binary operators
    'no-multi-assign': '', // disallow use of chained assignment expressions
    'no-multiple-empty-lines': '', // disallow multiple empty lines
    'no-negated-condition': '', // disallow negated conditions
    'no-nested-ternary': '', // disallow nested ternary expressions
    'no-new-object': '', // disallow `Object` constructors
    'no-plusplus': '', // disallow the unary operators `++` and `--`
    'no-restricted-syntax': '', // disallow specified syntax
    'no-tabs': '', // disallow all tabs
    'no-ternary': '', // disallow ternary operators
    'no-trailing-spaces': '', // disallow trailing whitespace at the end of lines
    'no-underscore-dangle': '', // disallow dangling underscores in identifiers
    'no-unneeded-ternary': '', // disallow ternary operators when simpler alternatives exist
    'no-whitespace-before-property': '', // disallow whitespace before properties
    'nonblock-statement-body-position': '', // enforce the location of single-line statements
    'object-curly-newline': '', // enforce consistent line breaks inside braces
    'object-curly-spacing': '', // enforce consistent spacing inside braces
    'object-property-newline': '', // enforce placing object properties on separate lines
    'one-var': '', // enforce variables to be declared either together or separately in functions
    'one-var-declaration-per-line': '', // require or disallow newlines around variable declarations
    'operator-assignment': '', // require or disallow assignment operator shorthand where possible
    'operator-linebreak': '', // enforce consistent linebreak style for operators
    'padded-blocks': '', // require or disallow padding within blocks
    'padding-line-between-statements': '', // require or disallow padding lines between statements
    'prefer-exponentiation-operator': '', // disallow the use of `Math.pow` in favor of the `**` operator
    'prefer-object-spread': '', // disallow using Object.assign with an object literal as the first argument and prefer the use of object spread instead.
    'quote-props': '', // require quotes around object literal property names
    quotes: ['error', 'single'],
    semi: ['error', 'always'],
    'semi-spacing': '', // enforce consistent spacing before and after semicolons
    'semi-style': '', // enforce location of semicolons
    'sort-keys': '', // require object keys to be sorted
    'sort-vars': '', // require variables within the same declaration block to be sorted
    'space-before-blocks': '', // enforce consistent spacing before blocks
    'space-before-function-paren': '', // enforce consistent spacing before `function` definition opening parenthesis
    'space-in-parens': '', // enforce consistent spacing inside parentheses
    'space-infix-ops': '', // require spacing around infix operators
    'space-unary-ops': '', // enforce consistent spacing before or after unary operators
    'spaced-comment': '', // enforce consistent spacing after the `//` or `/*` in a comment
    'switch-colon-spacing': '', // enforce spacing around colons of switch statements
    'template-tag-spacing': '', // require or disallow spacing between template tags and their literals
    'unicode-bom': '', // require or disallow Unicode byte order mark (BOM)
    'wrap-regex': '', // require parenthesis around regex literals
    // ## ECMAScript 6
    //     These rules relate to ES6, also known as ES2015:
    'arrow-body-style': '', // require braces around arrow function bodies
    'arrow-parens': '', // require parentheses around arrow function arguments
    'arrow-spacing': '', // enforce consistent spacing before and after the arrow in arrow functions
    'generator-star-spacing': '', // enforce consistent spacing around `*` operators in generator functions
    'no-confusing-arrow': '', // disallow arrow functions where they could be confused with comparisons
    'no-duplicate-imports': '', // disallow duplicate module imports
    'no-restricted-imports': '', // disallow specified modules when loaded by `import`
    'no-useless-computed-key': '', // disallow unnecessary computed property keys in objects and classes
    'no-useless-constructor': '', // disallow unnecessary constructors
    'no-useless-rename': '', // disallow renaming import, export, and destructured assignments to the same name
    'no-var': '', // require `let` or `const` instead of `var`
    'object-shorthand': '', // require or disallow method and property shorthand syntax for object literals
    'prefer-arrow-callback': '', // require using arrow functions for callbacks
    'prefer-const': '', // require `const` declarations for variables that are never reassigned after declared
    'prefer-destructuring': '', // require destructuring from arrays and/or objects
    'prefer-numeric-literals': '', // disallow `parseInt()` and `Number.parseInt()` in favor of binary, octal, and hexadecimal literals
    'prefer-rest-params': '', // require rest parameters instead of `arguments`
    'prefer-spread': '', // require spread operators instead of `.apply()`
    'prefer-template': '', // require template literals instead of string concatenation
    'rest-spread-spacing': '', // enforce spacing between rest and spread operators and their expressions
    'sort-imports': '', // enforce sorted import declarations within modules
    'symbol-description': '', // require symbol descriptions
    'template-curly-spacing': '', // require or disallow spacing around embedded expressions of template strings
    'yield-star-spacing': '' // require or disallow spacing around the `*` in `yield*` expressions
  }

}