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| 1 | +module.exports = { |
| 2 | + parser: "babel-eslint", |
| 3 | + |
| 4 | + extends: "plugin:prettier/recommended", |
| 5 | + plugins: ["prettier"], |
| 6 | + |
| 7 | + env: { |
| 8 | + es6: true, |
| 9 | + browser: true |
| 10 | + }, |
| 11 | + globals: { |
| 12 | + stateObj: true, |
| 13 | + workbox: false, |
| 14 | + document: true, |
| 15 | + window: true, |
| 16 | + CodeMirror: true, |
| 17 | + jQuery: true, |
| 18 | + $: true, |
| 19 | + |
| 20 | + hljs: true |
| 21 | + }, |
| 22 | + parserOptions: { |
| 23 | + ecmaVersion: 2017, |
| 24 | + ecmaFeatures: { |
| 25 | + arrowFunctions: true, |
| 26 | + binaryLiterals: true, |
| 27 | + blockBindings: true, |
| 28 | + classes: true, |
| 29 | + defaultParams: true, |
| 30 | + destructuring: true, |
| 31 | + forOf: true, |
| 32 | + generators: true, |
| 33 | + modules: true, |
| 34 | + objectLiteralComputedProperties: true, |
| 35 | + objectLiteralDuplicateProperties: true, |
| 36 | + objectLiteralShorthandMethods: true, |
| 37 | + objectLiteralShorthandProperties: true, |
| 38 | + octalLiterals: true, |
| 39 | + regexUFlag: true, |
| 40 | + regexYFlag: true, |
| 41 | + spread: true, |
| 42 | + superInFunctions: true, |
| 43 | + templateStrings: true, |
| 44 | + unicodeCodePointEscapes: true, |
| 45 | + globalReturn: true, |
| 46 | + jsx: true |
| 47 | + } |
| 48 | + }, |
| 49 | + |
| 50 | + rules: { |
| 51 | + "prettier/prettier": "error", |
| 52 | + |
| 53 | + // |
| 54 | + //Possible Errors |
| 55 | + // |
| 56 | + // The following rules point out areas where you might have made mistakes. |
| 57 | + // |
| 58 | + "comma-dangle": 0, // disallow or enforce trailing commas |
| 59 | + "no-cond-assign": 2, // disallow assignment in conditional expressions |
| 60 | + "no-console": 0, // disallow use of console (off by default in the node environment) |
| 61 | + "no-constant-condition": 2, // disallow use of constant expressions in conditions |
| 62 | + "no-control-regex": 2, // disallow control characters in regular expressions |
| 63 | + "no-debugger": 2, // disallow use of debugger |
| 64 | + "no-dupe-args": 2, // disallow duplicate arguments in functions |
| 65 | + "no-dupe-keys": 2, // disallow duplicate keys when creating object literals |
| 66 | + "no-duplicate-case": 2, // disallow a duplicate case label. |
| 67 | + "no-empty": 2, // disallow empty statements |
| 68 | + |
| 69 | + "no-ex-assign": 2, // disallow assigning to the exception in a catch block |
| 70 | + "no-extra-boolean-cast": 2, // disallow double-negation boolean casts in a boolean context |
| 71 | + "no-extra-parens": 0, // disallow unnecessary parentheses (off by default) |
| 72 | + "no-extra-semi": 2, // disallow unnecessary semicolons |
| 73 | + "no-func-assign": 2, // disallow overwriting functions written as function declarations |
| 74 | + "no-inner-declarations": 2, // disallow function or variable declarations in nested blocks |
| 75 | + "no-invalid-regexp": 2, // disallow invalid regular expression strings in the RegExp constructor |
| 76 | + "no-irregular-whitespace": 2, // disallow irregular whitespace outside of strings and comments |
| 77 | + "no-negated-in-lhs": 2, // disallow negation of the left operand of an in expression |
| 78 | + "no-obj-calls": 2, // disallow the use of object properties of the global object (Math and JSON) as functions |
| 79 | + "no-regex-spaces": 2, // disallow multiple spaces in a regular expression literal |
| 80 | + "no-sparse-arrays": 2, // disallow sparse arrays |
| 81 | + "no-unreachable": 2, // disallow unreachable statements after a return, throw, continue, or break statement |
| 82 | + "use-isnan": 2, // disallow comparisons with the value NaN |
| 83 | + "valid-jsdoc": 0, // Ensure JSDoc comments are valid (off by default) |
| 84 | + "valid-typeof": 2, // Ensure that the results of typeof are compared against a valid string |
| 85 | + |
| 86 | + // |
| 87 | + // Best Practices |
| 88 | + // |
| 89 | + // These are rules designed to prevent you from making mistakes. |
| 90 | + // They either prescribe a better way of doing something or help you avoid footguns. |
| 91 | + // |
| 92 | + "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 |
| 93 | + complexity: 0, // specify the maximum cyclomatic complexity allowed in a program (off by default) |
| 94 | + "consistent-return": 0, // require return statements to either always or never specify values |
| 95 | + curly: 2, // specify curly brace conventions for all control statements |
| 96 | + "default-case": 2, // require default case in switch statements (off by default) |
| 97 | + "dot-notation": 2, // encourages use of dot notation whenever possible |
| 98 | + eqeqeq: 2, // require the use of === and !== |
| 99 | + "guard-for-in": 2, // make sure for-in loops have an if statement (off by default) |
| 100 | + "no-alert": 0, // disallow the use of alert, confirm, and prompt |
| 101 | + "no-caller": 2, // disallow use of arguments.caller or arguments.callee |
| 102 | + "no-div-regex": 2, // disallow division operators explicitly at beginning of regular expression (off by default) |
| 103 | + "no-else-return": 0, // disallow else after a return in an if (off by default) |
| 104 | + "no-eq-null": 2, // disallow comparisons to null without a type-checking operator (off by default) |
| 105 | + "no-eval": 2, // disallow use of eval() |
| 106 | + "no-extend-native": 2, // disallow adding to native types |
| 107 | + "no-extra-bind": 2, // disallow unnecessary function binding |
| 108 | + "no-fallthrough": 2, // disallow fallthrough of case statements |
| 109 | + "no-floating-decimal": 2, // disallow the use of leading or trailing decimal points in numeric literals (off by default) |
| 110 | + "no-implied-eval": 2, // disallow use of eval()-like methods |
| 111 | + "no-iterator": 2, // disallow usage of __iterator__ property |
| 112 | + "no-labels": 2, // disallow use of labeled statements |
| 113 | + "no-lone-blocks": 2, // disallow unnecessary nested blocks |
| 114 | + "no-loop-func": 2, // disallow creation of functions within loops |
| 115 | + "no-multi-spaces": 2, // disallow use of multiple spaces |
| 116 | + "no-multi-str": 2, // disallow use of multiline strings |
| 117 | + "no-native-reassign": 2, // disallow reassignments of native objects |
| 118 | + "no-new": 2, // disallow use of new operator when not part of the assignment or comparison |
| 119 | + "no-new-func": 2, // disallow use of new operator for Function object |
| 120 | + "no-new-wrappers": 2, // disallows creating new instances of String,Number, and Boolean |
| 121 | + "no-octal": 2, // disallow use of octal literals |
| 122 | + "no-octal-escape": 2, // disallow use of octal escape sequences in string literals, such as var foo = "Copyright \251"; |
| 123 | + "no-param-reassign": 0, // disallow reassignment of function parameters (off by default) |
| 124 | + "no-process-env": 0, // disallow use of process.env (off by default) |
| 125 | + "no-proto": 2, // disallow usage of __proto__ property |
| 126 | + "no-redeclare": 2, // disallow declaring the same variable more then once |
| 127 | + "no-return-assign": 2, // disallow use of assignment in return statement |
| 128 | + "no-script-url": 2, // disallow use of javascript: urls. |
| 129 | + "no-self-compare": 2, // disallow comparisons where both sides are exactly the same (off by default) |
| 130 | + "no-sequences": 2, // disallow use of comma operator |
| 131 | + "no-throw-literal": 2, // restrict what can be thrown as an exception (off by default) |
| 132 | + "no-unused-expressions": 2, // disallow usage of expressions in statement position |
| 133 | + "no-void": 2, // disallow use of void operator (off by default) |
| 134 | + "no-warning-comments": [ |
| 135 | + 0, |
| 136 | + { |
| 137 | + terms: ["todo", "fixme"], |
| 138 | + location: "start" |
| 139 | + } |
| 140 | + ], // disallow usage of configurable warning terms in comments": 2, // e.g. TODO or FIXME (off by default) |
| 141 | + "no-with": 2, // disallow use of the with statement |
| 142 | + radix: 2, // require use of the second argument for parseInt() (off by default) |
| 143 | + "vars-on-top": 0, // requires to declare all vars on top of their containing scope (off by default) |
| 144 | + "wrap-iife": 2, // require immediate function invocation to be wrapped in parentheses (off by default) |
| 145 | + yoda: 2, // require or disallow Yoda conditions |
| 146 | + |
| 147 | + // |
| 148 | + // Strict Mode |
| 149 | + // |
| 150 | + // These rules relate to using strict mode. |
| 151 | + // |
| 152 | + strict: 0, // controls location of Use Strict Directives. 0: required by `babel-eslint` |
| 153 | + |
| 154 | + // |
| 155 | + // Variables |
| 156 | + // |
| 157 | + // These rules have to do with variable declarations. |
| 158 | + // |
| 159 | + "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) |
| 160 | + "no-delete-var": 2, // disallow deletion of variables |
| 161 | + "no-label-var": 2, // disallow labels that share a name with a variable |
| 162 | + "no-shadow": 2, // disallow declaration of variables already declared in the outer scope |
| 163 | + "no-shadow-restricted-names": 2, // disallow shadowing of names such as arguments |
| 164 | + "no-undef": 2, // disallow use of undeclared variables unless mentioned in a /*global */ block |
| 165 | + "no-undef-init": 2, // disallow use of undefined when initializing variables |
| 166 | + "no-undefined": 0, // disallow use of undefined variable (off by default) |
| 167 | + "no-unused-vars": 0, // disallow declaration of variables that are not used in the code |
| 168 | + "no-use-before-define": 2, // disallow use of variables before they are defined |
| 169 | + |
| 170 | + // |
| 171 | + //Stylistic Issues |
| 172 | + // |
| 173 | + // These rules are purely matters of style and are quite subjective. |
| 174 | + // |
| 175 | + indent: [0, "tab"], // this option sets a specific tab width for your code (off by default) |
| 176 | + "brace-style": 1, // enforce one true brace style (off by default) |
| 177 | + camelcase: 0, // require camel case names |
| 178 | + "comma-spacing": [ |
| 179 | + 1, |
| 180 | + { |
| 181 | + before: false, |
| 182 | + after: true |
| 183 | + } |
| 184 | + ], // enforce spacing before and after comma |
| 185 | + "comma-style": [1, "last"], // enforce one true comma style (off by default) |
| 186 | + "consistent-this": [1, "_this"], // enforces consistent naming when capturing the current execution context (off by default) |
| 187 | + "eol-last": 1, // enforce newline at the end of file, with no multiple empty lines |
| 188 | + "func-names": 0, // require function expressions to have a name (off by default) |
| 189 | + "func-style": 0, // enforces use of function declarations or expressions (off by default) |
| 190 | + "key-spacing": [ |
| 191 | + 1, |
| 192 | + { |
| 193 | + beforeColon: false, |
| 194 | + afterColon: true |
| 195 | + } |
| 196 | + ], // enforces spacing between keys and values in object literal properties |
| 197 | + "max-nested-callbacks": [1, 4], // specify the maximum depth callbacks can be nested (off by default) |
| 198 | + "new-cap": [ |
| 199 | + 1, |
| 200 | + { |
| 201 | + newIsCap: true, |
| 202 | + capIsNew: false |
| 203 | + } |
| 204 | + ], // require a capital letter for constructors |
| 205 | + "new-parens": 1, // disallow the omission of parentheses when invoking a constructor with no arguments |
| 206 | + "newline-after-var": 0, // allow/disallow an empty newline after var statement (off by default) |
| 207 | + "no-array-constructor": 1, // disallow use of the Array constructor |
| 208 | + "no-inline-comments": 0, // disallow comments inline after code (off by default) |
| 209 | + "no-lonely-if": 1, // disallow if as the only statement in an else block (off by default) |
| 210 | + "no-mixed-spaces-and-tabs": 1, // disallow mixed spaces and tabs for indentation |
| 211 | + "no-multiple-empty-lines": [ |
| 212 | + 1, |
| 213 | + { |
| 214 | + max: 2 |
| 215 | + } |
| 216 | + ], // disallow multiple empty lines (off by default) |
| 217 | + "no-nested-ternary": 1, // disallow nested ternary expressions (off by default) |
| 218 | + "no-new-object": 1, // disallow use of the Object constructor |
| 219 | + "no-spaced-func": 1, // disallow space between function identifier and application |
| 220 | + "no-ternary": 0, // disallow the use of ternary operators (off by default) |
| 221 | + "no-trailing-spaces": 1, // disallow trailing whitespace at the end of lines |
| 222 | + "no-underscore-dangle": 0, // disallow dangling underscores in identifiers |
| 223 | + //"one-var": ["warn", { "initialized": "never" }], // allow just one var statement per function (off by default) |
| 224 | + "operator-assignment": [0, "never"], // require assignment operator shorthand where possible or prohibit it entirely (off by default) |
| 225 | + "padded-blocks": [0, "always"], // enforce padding within blocks (off by default) |
| 226 | + "quote-props": [0, "as-needed"], // require quotes around object literal property names (off by default) |
| 227 | + quotes: [0, "single"], // specify whether double or single quotes should be used |
| 228 | + semi: [1, "always"], // require or disallow use of semicolons instead of ASI |
| 229 | + "semi-spacing": [ |
| 230 | + 1, |
| 231 | + { |
| 232 | + before: false, |
| 233 | + after: true |
| 234 | + } |
| 235 | + ], // enforce spacing before and after semicolons |
| 236 | + "sort-vars": 0, // sort variables within the same declaration block (off by default) |
| 237 | + |
| 238 | + "space-before-blocks": [1, "always"], // require or disallow space before blocks (off by default) |
| 239 | + "space-before-function-paren": [ |
| 240 | + 0, |
| 241 | + { |
| 242 | + anonymous: "always", |
| 243 | + named: "never" |
| 244 | + } |
| 245 | + ], // require or disallow space before function opening parenthesis (off by default) |
| 246 | + |
| 247 | + //"space-infix-ops": [1], // require spaces around operators |
| 248 | + //"space-return-throw-case": [1, "always"], // require a space after return, throw, and case |
| 249 | + "space-unary-ops": [ |
| 250 | + 1, |
| 251 | + { |
| 252 | + words: true, |
| 253 | + nonwords: false |
| 254 | + } |
| 255 | + ], // Require or disallow spaces before/after unary operators (words on by default, nonwords off by default) |
| 256 | + "wrap-regex": 0, // require regex literals to be wrapped in parentheses (off by default) |
| 257 | + |
| 258 | + // |
| 259 | + // ECMAScript 6 |
| 260 | + // |
| 261 | + // These rules are only relevant to ES6 environments and are off by default. |
| 262 | + // |
| 263 | + "no-var": 0, // require let or const instead of var (off by default) |
| 264 | + "generator-star-spacing": [2, "before"], // enforce the spacing around the * in generator functions (off by default) |
| 265 | + |
| 266 | + // |
| 267 | + // Legacy |
| 268 | + // |
| 269 | + // The following rules are included for compatibility with JSHint and JSLint. |
| 270 | + // While the names of the rules may not match up with the JSHint/JSLint counterpart, |
| 271 | + // the functionality is the same. |
| 272 | + // |
| 273 | + "max-depth": [2, 3], // specify the maximum depth that blocks can be nested (off by default) |
| 274 | + "max-len": [1, 150, 2], // specify the maximum length of a line in your program (off by default) |
| 275 | + "max-params": [1, 10], // limits the number of parameters that can be used in the function declaration. (off by default) |
| 276 | + "max-statements": 0, // specify the maximum number of statement allowed in a function (off by default) |
| 277 | + "no-bitwise": 1, // disallow use of bitwise operators (off by default) |
| 278 | + "no-plusplus": 0 // disallow use of unary operators, ++ and -- (off by default) |
| 279 | + } |
| 280 | +}; |
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