module.exports = { "extends": "eslint:recommended", "env": { "browser": true, "node": true, "es6": true }, "globals": { "$": true, "jQuery": true, "Handlebars": true }, "plugins": ["react"], "ecmaFeatures": { "arrowFunctions": true, "binaryLiterals": true, "blockBindings": true, "classes": true, "defaultParams": true, "destructuring": true, "experimentalObjectRestSpread": true, "forOf": true, "generators": true, "globalReturn": true, "jsx": true, "modules": true, "objectLiteralComputedProperties": true, "objectLiteralDuplicateProperties": true, "objectLiteralShorthandMethods": true, "objectLiteralShorthandProperties": true, "octalLiterals": true, "regexUFlag": true, "regexYFlag": true, "spread": true, "superInFunctions": true, "templateStrings": true, "unicodeCodePointEscapes": true }, "rules": { // // Possible Errors // // The following rules point out areas where you might have made mistakes. // "comma-dangle": 2, // disallow or enforce trailing commas "no-cond-assign": 2, // disallow assignment in conditional expressions "no-console": 1, // disallow use of console (off by default in the node environment) "no-constant-condition": 2, // disallow use of constant expressions in conditions "no-control-regex": 2, // disallow control characters in regular expressions "no-debugger": 2, // disallow use of debugger "no-dupe-args": 2, // disallow duplicate arguments in functions "no-dupe-keys": 2, // disallow duplicate keys when creating object literals "no-duplicate-case": 2, // disallow a duplicate case label. "no-empty": 2, // disallow empty statements "no-empty-character-class": 2, // disallow the use of empty character classes in regular expressions "no-ex-assign": 2, // disallow assigning to the exception in a catch block "no-extra-boolean-cast": 2, // disallow double-negation boolean casts in a boolean context "no-extra-parens": 0, // disallow unnecessary parentheses (off by default) "no-extra-semi": 2, // disallow unnecessary semicolons "no-func-assign": 2, // disallow overwriting functions written as function declarations "no-inner-declarations": 2, // disallow function or variable declarations in nested blocks "no-invalid-regexp": 2, // disallow invalid regular expression strings in the RegExp constructor "no-irregular-whitespace": 2, // disallow irregular whitespace outside of strings and comments "no-negated-in-lhs": 2, // disallow negation of the left operand of an in expression "no-obj-calls": 2, // disallow the use of object properties of the global object (Math and JSON) as functions "no-regex-spaces": 2, // disallow multiple spaces in a regular expression literal "no-sparse-arrays": 2, // disallow sparse arrays "no-unreachable": 2, // disallow unreachable statements after a return, throw, continue, or break statement "quote-props": 0, // disallow reserved words being used as object literal keys (off by default) "use-isnan": 2, // disallow comparisons with the value NaN "valid-jsdoc": 2, // Ensure JSDoc comments are valid (off by default) "valid-typeof": 2, // Ensure that the results of typeof are compared against a valid string // // Best Practices // // These are rules designed to prevent you from making mistakes. // They either prescribe a better way of doing something or help you avoid footguns. // "block-scoped-var": 0, // treat var statements as if they were block scoped (off by default). 0: deep destructuring is not compatible https://github.com/eslint/eslint/issues/1863 "complexity": 0, // specify the maximum cyclomatic complexity allowed in a program (off by default) "consistent-return": 2, // require return statements to either always or never specify values "curly": 2, // specify curly brace conventions for all control statements "default-case": 2, // require default case in switch statements (off by default) "dot-notation": 2, // encourages use of dot notation whenever possible "eqeqeq": 2, // require the use of === and !== "guard-for-in": 2, // make sure for-in loops have an if statement (off by default) "no-alert": 2, // disallow the use of alert, confirm, and prompt "no-caller": 2, // disallow use of arguments.caller or arguments.callee "no-div-regex": 2, // disallow division operators explicitly at beginning of regular expression (off by default) "no-else-return": 2, // disallow else after a return in an if (off by default) //"no-empty-label": 2, // disallow use of labels for anything other then loops and switches "no-eq-null": 2, // disallow comparisons to null without a type-checking operator (off by default) "no-eval": 2, // disallow use of eval() "no-extend-native": 2, // disallow adding to native types "no-extra-bind": 2, // disallow unnecessary function binding "no-fallthrough": 2, // disallow fallthrough of case statements "no-floating-decimal": 2, // disallow the use of leading or trailing decimal points in numeric literals (off by default) "no-implied-eval": 2, // disallow use of eval()-like methods "no-iterator": 2, // disallow usage of __iterator__ property "no-labels": 2, // disallow use of labeled statements "no-lone-blocks": 2, // disallow unnecessary nested blocks "no-loop-func": 2, // disallow creation of functions within loops "no-multi-spaces": 2, // disallow use of multiple spaces "no-multi-str": 2, // disallow use of multiline strings "no-native-reassign": 2, // disallow reassignments of native objects "no-new": 2, // disallow use of new operator when not part of the assignment or comparison "no-new-func": 2, // disallow use of new operator for Function object "no-new-wrappers": 2, // disallows creating new instances of String,Number, and Boolean "no-octal": 2, // disallow use of octal literals "no-octal-escape": 2, // disallow use of octal escape sequences in string literals, such as var foo = "Copyright \251"; "no-param-reassign": 2, // disallow reassignment of function parameters (off by default) "no-process-env": 2, // disallow use of process.env (off by default) "no-proto": 2, // disallow usage of __proto__ property "no-redeclare": 2, // disallow declaring the same variable more then once "no-return-assign": 2, // disallow use of assignment in return statement "no-script-url": 2, // disallow use of javascript: urls. "no-self-compare": 2, // disallow comparisons where both sides are exactly the same (off by default) "no-sequences": 2, // disallow use of comma operator "no-throw-literal": 2, // restrict what can be thrown as an exception (off by default) "no-unused-expressions": 2, // disallow usage of expressions in statement position "no-void": 0, // disallow use of void operator (off by default) "no-warning-comments": [0, {"terms": ["todo", "fixme"], "location": "start"}], // disallow usage of configurable warning terms in comments": 2, // e.g. TODO or FIXME (off by default) "no-with": 2, // disallow use of the with statement "radix": 2, // require use of the second argument for parseInt() (off by default) "vars-on-top": 2, // requires to declare all vars on top of their containing scope (off by default) "wrap-iife": 2, // require immediate function invocation to be wrapped in parentheses (off by default) "yoda": 2, // require or disallow Yoda conditions // // Strict Mode // // These rules relate to using strict mode. // "strict": 0, // controls location of Use Strict Directives. 0: required by `babel-eslint` // // Variables // // These rules have to do with variable declarations. // "no-catch-shadow": 2, // 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": 2, // disallow deletion of variables "no-label-var": 2, // disallow labels that share a name with a variable "no-shadow": 2, // disallow declaration of variables already declared in the outer scope "no-shadow-restricted-names": 2, // disallow shadowing of names such as arguments "no-undef": 2, // disallow use of undeclared variables unless mentioned in a /*global */ block "no-undef-init": 2, // disallow use of undefined when initializing variables "no-undefined": 2, // disallow use of undefined variable (off by default) "no-unused-vars": 2, // disallow declaration of variables that are not used in the code "no-use-before-define": 2, // disallow use of variables before they are defined // // Stylistic Issues. // // These rules are purely matters of style and are quite subjective. // "array-bracket-spacing": [2, "never"], "indent": [2, 2, { SwitchCase: 1 }], // this option sets a specific tab width for your code (off by default) "brace-style": [2, "stroustrup", {"allowSingleLine": true}], "camelcase": 0, // require camel case names "comma-spacing": [1, {"before": false, "after": true}], // enforce spacing before and after comma "comma-style": [1, "last"], // enforce one true comma style (off by default) "computed-property-spacing": [2, "never"], "consistent-this": [1, "that"], // enforces consistent naming when capturing the current execution context (off by default) "eol-last": 2, // 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": 0, // enforces use of function declarations or expressions (off by default) "jsx-quotes": [1, "prefer-double"], "key-spacing": [1, {"beforeColon": false, "afterColon": true}], // enforces spacing between keys and values in object literal properties "linebreak-style": [2, "unix"], "max-nested-callbacks": [1, 3], // specify the maximum depth callbacks can be nested (off by default) "new-cap": [1, {"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-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, {"max": 2}], // disallow multiple empty lines (off by default) "no-nested-ternary": 1, // 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": 1, // disallow dangling underscores in identifiers "object-curly-spacing": [2, "always"], "one-var": [2, "never"], // allow just one var statement per function (off by default) "operator-assignment": [1, "always"], // require assignment operator shorthand where possible or prohibit it entirely (off by default) "padded-blocks": [1, "never"], // enforce padding within blocks (off by default) "quotes": [1, "double"], // specify whether double or single quotes should be used "semi": [2, "always"], // require or disallow use of semicolons instead of ASI "semi-spacing": [1, { "before": false, "after": true }], // enforce spacing before and after semicolons "sort-vars": 0, // sort variables within the same declaration block (off by default) // "space-after-keywords": [1, "always"], // require a space after certain keywords (off by default) "space-before-blocks": [1, "always"], // require or disallow space before blocks (off by default) "space-before-function-paren": [1, {"anonymous": "always", "named": "never"}], // require or disallow space before function opening parenthesis (off by default) "space-in-parens": [1, "never"], // require or disallow spaces inside parentheses (off by default) "space-infix-ops": [2, {"int32Hint": true}], // require spaces around operators // "space-return-throw-case": [2], // require a space after return, throw, and case "space-unary-ops": [1, {"words": true, "nonwords": false}], // Require or disallow spaces before/after unary operators (words on by default, nonwords off by default) "spaced-comment": [1, "always"], // require or disallow a space immediately following the // in a line comment (off by default) "wrap-regex": 0, // require regex literals to be wrapped in parentheses (off by default) // // ECMAScript 6 // // These rules are only relevant to ES6 environments and are off by default. // "no-var": 0, // require let or const instead of var (off by default) "generator-star-spacing": [2, "before"], // enforce the spacing around the * in generator functions (off by default) // // Legacy // // The following rules are included for compatibility with JSHint and JSLint. // While the names of the rules may not match up with the JSHint/JSLint counterpart, // the functionality is the same. // "max-depth": [2, 3], // specify the maximum depth that blocks can be nested (off by default) "max-len": [2, 120, 1, { ignorePattern: "^\\s+(description|image\\d): " }], // specify the maximum length of a line in your program (off by default) "max-params": [2, 10], // limits the number of parameters that can be used in the function declaration. (off by default) "max-statements": 0, // specify the maximum number of statement allowed in a function (off by default) "no-bitwise": 0, // disallow use of bitwise operators (off by default) "no-plusplus": 0, // disallow use of unary operators, ++ and -- (off by default) // // eslint-plugin-react // // React specific linting rules for ESLint // "react/display-name": 0, // Prevent missing displayName in a React component definition "react/jsx-no-undef": 2, // Disallow undeclared variables in JSX "react/jsx-sort-props": 0, // Enforce props alphabetical sorting "react/jsx-uses-react": 2, // Prevent React to be incorrectly marked as unused "react/jsx-uses-vars": 2, // Prevent variables used in JSX to be incorrectly marked as unused "react/no-did-mount-set-state": 1, // Prevent usage of setState in componentDidMount "react/no-did-update-set-state": 1, // Prevent usage of setState in componentDidUpdate "react/no-multi-comp": 0, // Prevent multiple component definition per file "react/no-unknown-property": 2, // Prevent usage of unknown DOM property "react/prop-types": 2, // Prevent missing props validation in a React component definition "react/react-in-jsx-scope": 0, // Prevent missing React when using JSX "react/self-closing-comp": 2, // Prevent extra closing tags for components without children "react/wrap-multilines": 2 // Prevent missing parentheses around multilines JSX } };