{
  "extends": [
 "plugin:react/recommended"
  ],
  "env": {
    browser: true,
    es6: true,
    node: true,
  "jest": true
  },
  "parser": "babel-eslint",
  "parserOptions": {
    "parser": "babel-eslint",
    "ecmaVersion": 2018,
    "sourceType": "module",
    "ecmaFeatures": {
      "react": true,
      "jsx": true
    }
  },
  "settings": {
    "react": {
      "createClass": "createReactClass", // Regex for Component Factory to use,
                                         // default to "createReactClass"
      "pragma": "React",  // Pragma to use, default to "React"
      "version": "detect", // React version. "detect" automatically picks the version you have installed.
                           // You can also use `16.0`, `16.3`, etc, if you want to override the detected value.
                           // default to latest and warns if missing
                           // It will default to "detect" in the future
      "flowVersion": "0.53" // Flow version
    },
    "propWrapperFunctions": [
        // The names of any function used to wrap propTypes, e.g. `forbidExtraProps`. If this isn't set, any propTypes wrapped in a function will be skipped.
        "forbidExtraProps",
        {"property": "freeze", "object": "Object"},
        {"property": "myFavoriteWrapper"}
    ],
    "linkComponents": [
      // Components used as alternatives to <a> for linking, eg. <Link to={ url } />
      "Hyperlink",
      {"name": "Link", "linkAttribute": "to"}
    ]
  },
  "plugins": [
    "standard",
    "react",
    "import",
    "node",
    "promise"
  ],
  "rules": {
    ////////// Possible Errors //////////

    "comma-dangle": 1, // disallow trailing commas in object literals
    "no-cond-assign": 0, // disallow assignment in conditional expressions
    "no-console": 0, // disallow use of console (off by default in the node environment)
    "no-control-regex": 1, // disallow control characters in regular expressions
    "no-debugger": 1, // disallow use of debugger
    "no-dupe-args": 1, // disallow duplicate arguments in functions
    "no-dupe-keys": 1, // disallow duplicate keys when creating object literals
    "no-duplicate-case": 1, // disallow a duplicate case label
    "no-empty-character-class": 1, // disallow the use of empty character classes in regular expressions
    "no-empty": 1, // disallow empty statements
    "no-empty-pattern": "error",
    "no-ex-assign": 1, // disallow assigning to the exception in a catch block
    "no-extra-boolean-cast": 0, // disallow double-negation boolean casts in a boolean context
    "no-extra-parens": ["error", "functions"], // disallow unnecessary parentheses (off by default)
    "no-extra-semi": 1, // disallow unnecessary semicolons
    "no-func-assign": 1, // disallow overwriting functions written as function declarations
    "no-inner-declarations": ["error", "functions"], // disallow function or variable declarations in nested blocks
    "no-invalid-regexp": 1, // disallow invalid regular expression strings in the RegExp constructor
    "no-irregular-whitespace": 1, // disallow irregular whitespace outside of strings and comments
    "no-negated-in-lhs": 1, // disallow negation of the left operand of an in expression
    "no-obj-calls": 1, // disallow the use of object properties of the global object (Math and JSON) as functions
    "no-regex-spaces": 1, // disallow multiple spaces in a regular expression literal
    "no-sparse-arrays": 1, // disallow sparse arrays
    "no-unreachable": 1, // disallow unreachable statements after a return, throw, continue, or break statement
    "use-isnan": 1, // disallow comparisons with the value NaN
    "valid-jsdoc": 1, // Ensure JSDoc comments are valid (off by default)
    "valid-typeof": ["error", { "requireStringLiterals": true }], // Ensure that the results of typeof are compared against a valid string
    "no-unexpected-multiline": 1, // Avoid code that looks like two expressions but is actually one (off by default)

    ////////// Best Practices //////////

    "accessor-pairs": 1, // enforces getter/setter pairs in objects (off by default)
    "block-scoped-var": 0, // treat var statements as if they were block scoped (off by default)
    "complexity": 1, // specify the maximum cyclomatic complexity allowed in a program (off by default)
    "consistent-return": 1, // require return statements to either always or never specify values
    "curly": 1, // specify curly brace conventions for all control statements
    "default-case": 1, // require default case in switch statements (off by default)
    "dot-notation": 1, // encourages use of dot notation whenever possible
    "dot-location": ["error", "property"], // enforces consistent newlines before or after dots (off by default)
    "eqeqeq": ["error", "always", { "null": "ignore" }], // require the use of === and !==
    "guard-for-in": 1, // make sure for-in loops have an if statement (off by default)
    "no-alert": 1, // disallow the use of alert, confirm, and prompt
    "no-caller": 1, // disallow use of arguments.caller or arguments.callee
    "no-div-regex": 1, // disallow division operators explicitly at beginning of regular expression (off by default)
    "no-else-return": 1, // disallow else after a return in an if (off by default)
    "no-eq-null": 1, // disallow comparisons to null without a type-checking operator (off by default)
    "no-eval": 1, // disallow use of eval()
    "no-extend-native": 1, // disallow adding to native types
    "no-extra-bind": 1, // disallow unnecessary function binding
    "no-fallthrough": 1, // disallow fallthrough of case statements
    "no-floating-decimal": 1, // disallow the use of leading or trailing decimal points in numeric literals (off by default)
    "no-implied-eval": 1, // disallow use of eval()-like methods
    "no-iterator": 1, // disallow usage of __iterator__ property
    "no-labels": 1, // disallow use of labeled statements
    "no-lone-blocks": 1, // disallow unnecessary nested blocks
    "no-loop-func": 1, // disallow creation of functions within loops
    "no-multi-spaces": 1, // disallow use of multiple spaces
    "no-multi-str": 1, // disallow use of multiline strings
    "no-native-reassign": 1, // disallow reassignments of native objects
    "no-new-func": 1, // disallow use of new operator for Function object
    "no-new-wrappers": 1, // disallows creating new instances of String, Number, and Boolean
    "no-new": 1, // disallow use of new operator when not part of the assignment or comparison
    "no-octal-escape": 1, // disallow use of octal escape sequences in string literals, such as var foo = "Copyright \251";
    "no-octal": 1, // disallow use of octal literals
    "no-param-reassign": 0, // disallow reassignment of function parameters (off by default)
    "no-process-env": 0, // disallow use of process.env (off by default)
    "no-proto": 1, // disallow usage of __proto__ property
    "no-redeclare": 0, // disallow declaring the same variable more then once
    "no-return-assign": ["error", "except-parens"], // disallow use of assignment in return statement
    "no-script-url": 1, // disallow use of javascript: urls
    "no-self-compare": 1, // disallow comparisons where both sides are exactly the same (off by default)
    "no-sequences": 1, // disallow use of comma operator
    "no-throw-literal": 1, // restrict what can be thrown as an exception (off by default)
    "no-void": 1, // disallow use of void operator (off by default)
    "no-warning-comments": 1, // disallow usage of configurable warning terms in comments, e.g. TODO or FIXME (off by default)
    "no-with": 1, // disallow use of the with statement
    "radix": 1, // require use of the second argument for parseInt() (off by default)
    "vars-on-top": 0, // requires to declare all vars on top of their containing scope (off by default)
    "wrap-iife": ["error", "any", { "functionPrototypeMethods": true }], // require immediate function invocation to be wrapped in parentheses (off by default)
    "yoda": 1, // require or disallow Yoda conditions

    ////////// Strict Mode //////////

    //"strict": 1,          // controls location of Use Strict Directives

    ////////// Variables //////////

    "no-catch-shadow": 0, // disallow the catch clause parameter name being the same as a variable in the outer scope (off by default in the node environment)
    "no-delete-var": 1, // disallow deletion of variables
    "no-label-var": 1, // disallow labels that share a name with a variable
    "no-shadow": 0, // disallow declaration of variables already declared in the outer scope
    "no-shadow-restricted-names": 1, // disallow shadowing of names such as arguments
    "no-undef": ["error"], // disallow use of undeclared variables unless mentioned in a /*global */ block
    "no-undef-init": 1, // disallow use of undefined when initializing variables
    "no-undefined": 0, // disallow use of undefined variable (off by default)
    "no-unused-vars": ["error", { "vars": "all", "args": "none", "ignoreRestSiblings": true, "no-unused-vars": ["_", "__", "___"] }], // disallow declaration of variables that are not used in the code
    "no-use-before-define": ["error", { "functions": false, "classes": false, "variables": false }], // disallow use of variables before they are defined

    ////////// Node.js //////////

    "handle-callback-err": ["error", "^(err|error)$" ], // enforces error handling in callbacks (off by default) (on by default in the node environment)
    "no-mixed-requires": 1, // disallow mixing regular variable and require declarations (off by default) (on by default in the node environment)
    "no-new-require": 1, // disallow use of new operator with the require function (off by default) (on by default in the node environment)
    "no-path-concat": 1, // disallow string concatenation with __dirname and __filename (off by default) (on by default in the node environment)
    "no-process-exit": 1, // disallow process.exit() (on by default in the node environment)
    "no-restricted-modules": 1, // restrict usage of specified node modules (off by default)
    "no-sync": 0, // disallow use of synchronous methods (off by default)

    ////////// Stylistic Issues //////////

    "array-bracket-spacing": 1, // enforce spacing inside array brackets (off by default)
    "brace-style": ["error", "1tbs", { "allowSingleLine": true }], // enforce one true brace style (off by default)
    "camelcase": ["error", { "properties": "never" }], // require camel case names
    "comma-spacing": ["error", { "before": false, "after": true }], // enforce spacing before and after comma
    "comma-style": ["error", "last"], // enforce one true comma style (off by default)
    "computed-property-spacing": 1, // require or disallow padding inside computed properties (off by default)
    "consistent-this": ["error", "self"], // enforces consistent naming when capturing the current execution context (off by default)
    "eol-last": 1, // enforce newline at the end of file, with no multiple empty lines
    "func-names": 0, // require function expressions to have a name (off by default)
    //"func-style": 1,                  // enforces use of function declarations or expressions (off by default)
    "key-spacing": ["error", { "beforeColon": false, "afterColon": true }], // enforces spacing between keys and values in object literal properties
    "lines-around-comment": 0, // enforces empty lines around comments (off by default)
    "linebreak-style": 1, // disallow mixed 'LF' and 'CRLF' as linebreaks (off by default)
    "max-nested-callbacks": 1, // specify the maximum depth callbacks can be nested (off by default)
    "new-cap": ["error", { "newIsCap": true, "capIsNew": false }], // require a capital letter for constructors
    "new-parens": 1, // disallow the omission of parentheses when invoking a constructor with no arguments
    "newline-after-var": 0, // allow/disallow an empty newline after var statement (off by default)
    "no-array-constructor": 1, // disallow use of the Array constructor
    "no-continue": 0, // disallow use of the continue statement (off by default)
    "no-inline-comments": 0, // disallow comments inline after code (off by default)
    "no-lonely-if": 1, // disallow if as the only statement in an else block (off by default)
    "no-mixed-spaces-and-tabs": 1, // disallow mixed spaces and tabs for indentation
    "no-multiple-empty-lines": 1, // disallow multiple empty lines (off by default)
    "no-nested-ternary": 0, // disallow nested ternary expressions (off by default)
    "no-new-object": 1, // disallow use of the Object constructor
    "no-spaced-func": 1, // disallow space between function identifier and application
    "no-ternary": 0, // disallow the use of ternary operators (off by default)
    "no-trailing-spaces": 1, // disallow trailing whitespace at the end of lines
    "no-underscore-dangle": 0, // disallow dangling underscores in identifiers
    "one-var": 0, // allow just one var statement per function (off by default)
    "operator-assignment": 1, // require assignment operator shorthand where possible or prohibit it entirely (off by default)
    "operator-linebreak": ["error", "after", { "overrides": { "?": "before", ":": "before" } }], // enforce operators to be placed before or after line breaks (off by default)
    "padded-blocks": ["error", { "blocks": "never", "switches": "never", "classes": "never" }], // enforce padding within blocks (off by default)
    "quote-props": 0, // require quotes around object literal property names (off by default)
    "quotes": ["error", "double", { "avoidEscape": true, "allowTemplateLiterals": true }], // specify whether double or single quotes should be used
    "semi-spacing": ["error", { "before": false, "after": true }], // enforce spacing before and after semicolons
    "semi": ["error", "always"], // require or disallow use of semicolons instead of ASI
    "sort-vars": 1, // sort variables within the same declaration block (off by default)
    "space-before-blocks": 1, // require or disallow space before blocks (off by default)
    "space-before-function-paren": 0, // require or disallow space before function opening parenthesis (off by default)
    "space-in-parens": 1, // require or disallow spaces inside parentheses (off by default)
    "space-infix-ops": 1, // require spaces around operators
    "keyword-spacing": ["error", { "before": true, "after": true }],
    "space-unary-ops": ["error", { "words": true, "nonwords": false }], // require or disallow spaces before/after unary operators (words on by default, nonwords off by default)
    "spaced-comment": ["warn", "always", {
      "line": { "markers": ["*package", "!", "/", ",", "="] },
      "block": { "balanced": true, "markers": ["*package", "!", ",", ":", "::", "flow-include", "*globals"], "exceptions": ["*", "globals.*", "eslint-env"] }
    }], // require or disallow a space immediately following the // or /* in a comment (off by default)
    "wrap-regex": 1, // require regex literals to be wrapped in parentheses (off by default)

    ////////// ECMAScript 6 //////////

    "constructor-super": 1, // verify super() callings in constructors (off by default)
    "generator-star-spacing": ["error", { "before": true, "after": true }], // enforce the spacing around the * in generator functions (off by default)
    "no-this-before-super": 1, // disallow to use this/super before super() calling in constructors (off by default)
    "no-var": 1, // require let or const instead of var (off by default)
    "object-shorthand": 1, // require method and property shorthand syntax for object literals (off by default)
    "prefer-const": 1, // suggest using of const declaration for variables that are never modified after declared (off by default)

    ////////// Legacy //////////

    "max-depth": 1, // specify the maximum depth that blocks can be nested (off by default)
    "max-len": ["warn", { "code": 120 }], // specify the maximum length of a line in your program (off by default)
    "max-params": ["error", { max: 5 }], // limits the number of parameters that can be used in the function declaration. (off by default)
    "max-statements": ["error", { "max": 50 }], // specify the maximum number of statement allowed in a function (off by default)
    "no-bitwise": 1, // disallow use of bitwise operators (off by default)
    "no-plusplus": 0, // disallow use of unary operators, ++ and -- (off by default)

    ////////// Standard 2019 ///////
    "arrow-spacing": ["error", { "before": true, "after": true }],
    "block-spacing": ["error", "always"],
    "func-call-spacing": ["error", "never"],
    "indent": ["error", 2, {
      "SwitchCase": 1,
      "VariableDeclarator": 1,
      "outerIIFEBody": 1,
      "MemberExpression": 1,
      "FunctionDeclaration": { "parameters": 1, "body": 1 },
      "FunctionExpression": { "parameters": 1, "body": 1 },
      "CallExpression": { "arguments": 1 },
      "ArrayExpression": 1,
      "ObjectExpression": 1,
      "ImportDeclaration": 1,
      "flatTernaryExpressions": false,
      "ignoreComments": false
    }],
    "no-class-assign": "error",
    "no-compare-neg-zero": "error",
    "no-const-assign": "error",
    "no-constant-condition": ["error", { "checkLoops": false }],
    "no-dupe-class-members": "error",
    "no-global-assign": "error",
    "no-mixed-operators": ["error", {
      "groups": [
        ["==", "!=", "===", "!==", ">", ">=", "<", "<="],
        ["&&", "||"],
        ["in", "instanceof"]
      ],
      "allowSamePrecedence": true
    }],
    "no-new-symbol": "error",
    "no-return-await": "error",
    "no-self-assign": "error",
    "no-tabs": "error",
    "no-template-curly-in-string": "error",
    "no-unmodified-loop-condition": "error",
    "no-unneeded-ternary": ["error", { "defaultAssignment": false }],
    "no-unsafe-finally": "error",
    "no-unsafe-negation": "error",
    "no-unused-expressions": ["error", { "allowShortCircuit": true, "allowTernary": true, "allowTaggedTemplates": true }],
    "no-useless-call": "error",
    "no-useless-computed-key": "error",
    "no-useless-constructor": "error",
    "no-useless-escape": "error",
    "no-useless-rename": "error",
    "no-useless-return": "error",
    "no-whitespace-before-property": "error",
    "object-curly-spacing": ["error", "always"],
    "object-property-newline": ["error", { "allowMultiplePropertiesPerLine": true }],
    "prefer-promise-reject-errors": "error",
    "rest-spread-spacing": ["error", "never"],
    "symbol-description": "error",
    "template-curly-spacing": ["error", "never"],
    "template-tag-spacing": ["error", "never"],
    "unicode-bom": ["error", "never"],
    "yield-star-spacing": ["error", "both"],

    "import/export": "error",
    "import/first": "error",
    "import/no-duplicates": "error",
    "import/no-named-default": "error",
    "import/no-webpack-loader-syntax": "error",

    "node/no-deprecated-api": "error",
    "node/process-exit-as-throw": "error",

    "promise/param-names": "error",

    "standard/array-bracket-even-spacing": ["error", "either"],
    "standard/computed-property-even-spacing": ["error", "even"],
    "standard/no-callback-literal": "error",
    "standard/object-curly-even-spacing": ["error", "either"],

    "jsx-a11y/anchor-is-valid": 0,
    "react/prop-types": 0
  }
}