530 lines
18 KiB
JavaScript
530 lines
18 KiB
JavaScript
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const semver = require('semver');
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const eslintPkg = require('eslint/package.json');
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module.exports = {
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rules: {
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// enforce line breaks after opening and before closing array brackets
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// https://eslint.org/docs/rules/array-bracket-newline
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// TODO: enable? semver-major
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'array-bracket-newline': ['off', 'consistent'], // object option alternative: { multiline: true, minItems: 3 }
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// enforce line breaks between array elements
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// https://eslint.org/docs/rules/array-element-newline
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// TODO: enable? semver-major
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'array-element-newline': ['off', { multiline: true, minItems: 3 }],
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// enforce spacing inside array brackets
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'array-bracket-spacing': ['error', 'never'],
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// enforce spacing inside single-line blocks
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// https://eslint.org/docs/rules/block-spacing
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'block-spacing': ['error', 'always'],
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// enforce one true brace style
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'brace-style': ['error', '1tbs', { allowSingleLine: true }],
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// require camel case names
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camelcase: ['error', { properties: 'never', ignoreDestructuring: false }],
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// enforce or disallow capitalization of the first letter of a comment
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// https://eslint.org/docs/rules/capitalized-comments
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'capitalized-comments': ['off', 'never', {
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line: {
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ignorePattern: '.*',
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ignoreInlineComments: true,
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ignoreConsecutiveComments: true,
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},
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block: {
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ignorePattern: '.*',
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ignoreInlineComments: true,
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ignoreConsecutiveComments: true,
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},
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}],
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// require trailing commas in multiline object literals
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'comma-dangle': ['error', {
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arrays: 'always-multiline',
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objects: 'always-multiline',
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imports: 'always-multiline',
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exports: 'always-multiline',
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functions: 'always-multiline',
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}],
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// enforce spacing before and after comma
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'comma-spacing': ['error', { before: false, after: true }],
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// enforce one true comma style
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'comma-style': ['error', 'last', {
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exceptions: {
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ArrayExpression: false,
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ArrayPattern: false,
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ArrowFunctionExpression: false,
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CallExpression: false,
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FunctionDeclaration: false,
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FunctionExpression: false,
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ImportDeclaration: false,
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ObjectExpression: false,
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ObjectPattern: false,
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VariableDeclaration: false,
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NewExpression: false,
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}
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}],
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// disallow padding inside computed properties
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'computed-property-spacing': ['error', 'never'],
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// enforces consistent naming when capturing the current execution context
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'consistent-this': 'off',
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// enforce newline at the end of file, with no multiple empty lines
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'eol-last': ['error', 'always'],
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// https://eslint.org/docs/rules/function-call-argument-newline
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'function-call-argument-newline': ['error', 'consistent'],
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// enforce spacing between functions and their invocations
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// https://eslint.org/docs/rules/func-call-spacing
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'func-call-spacing': ['error', 'never'],
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// requires function names to match the name of the variable or property to which they are
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// assigned
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// https://eslint.org/docs/rules/func-name-matching
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'func-name-matching': ['off', 'always', {
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includeCommonJSModuleExports: false,
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considerPropertyDescriptor: true,
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}],
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// require function expressions to have a name
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// https://eslint.org/docs/rules/func-names
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'func-names': 'warn',
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// enforces use of function declarations or expressions
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// https://eslint.org/docs/rules/func-style
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// TODO: enable
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'func-style': ['off', 'expression'],
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// require line breaks inside function parentheses if there are line breaks between parameters
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// https://eslint.org/docs/rules/function-paren-newline
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'function-paren-newline': ['error', semver.satisfies(eslintPkg.version, '>= 6') ? 'multiline-arguments' : 'consistent'],
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// disallow specified identifiers
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// https://eslint.org/docs/rules/id-denylist
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'id-denylist': 'off',
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// this option enforces minimum and maximum identifier lengths
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// (variable names, property names etc.)
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'id-length': 'off',
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// require identifiers to match the provided regular expression
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'id-match': 'off',
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// Enforce the location of arrow function bodies with implicit returns
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// https://eslint.org/docs/rules/implicit-arrow-linebreak
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'implicit-arrow-linebreak': ['error', 'beside'],
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// this option sets a specific tab width for your code
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// https://eslint.org/docs/rules/indent
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indent: ['error', 2, {
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SwitchCase: 1,
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VariableDeclarator: 1,
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outerIIFEBody: 1,
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// MemberExpression: null,
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FunctionDeclaration: {
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parameters: 1,
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body: 1
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},
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FunctionExpression: {
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parameters: 1,
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body: 1
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},
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CallExpression: {
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arguments: 1
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},
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ArrayExpression: 1,
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ObjectExpression: 1,
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ImportDeclaration: 1,
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flatTernaryExpressions: false,
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// list derived from https://github.com/benjamn/ast-types/blob/HEAD/def/jsx.js
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ignoredNodes: ['JSXElement', 'JSXElement > *', 'JSXAttribute', 'JSXIdentifier', 'JSXNamespacedName', 'JSXMemberExpression', 'JSXSpreadAttribute', 'JSXExpressionContainer', 'JSXOpeningElement', 'JSXClosingElement', 'JSXFragment', 'JSXOpeningFragment', 'JSXClosingFragment', 'JSXText', 'JSXEmptyExpression', 'JSXSpreadChild'],
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ignoreComments: false
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}],
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// specify whether double or single quotes should be used in JSX attributes
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// https://eslint.org/docs/rules/jsx-quotes
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'jsx-quotes': ['off', 'prefer-double'],
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// enforces spacing between keys and values in object literal properties
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'key-spacing': ['error', { beforeColon: false, afterColon: true }],
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// require a space before & after certain keywords
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'keyword-spacing': ['error', {
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before: true,
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after: true,
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overrides: {
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return: { after: true },
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throw: { after: true },
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case: { after: true }
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}
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}],
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// enforce position of line comments
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// https://eslint.org/docs/rules/line-comment-position
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// TODO: enable?
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'line-comment-position': ['off', {
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position: 'above',
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ignorePattern: '',
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applyDefaultPatterns: true,
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}],
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// disallow mixed 'LF' and 'CRLF' as linebreaks
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// https://eslint.org/docs/rules/linebreak-style
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'linebreak-style': ['error', 'unix'],
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// require or disallow an empty line between class members
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// https://eslint.org/docs/rules/lines-between-class-members
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'lines-between-class-members': ['error', 'always', { exceptAfterSingleLine: false }],
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// enforces empty lines around comments
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'lines-around-comment': 'off',
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// require or disallow newlines around directives
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// https://eslint.org/docs/rules/lines-around-directive
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'lines-around-directive': ['error', {
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before: 'always',
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after: 'always',
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}],
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// specify the maximum depth that blocks can be nested
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'max-depth': ['off', 4],
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// specify the maximum length of a line in your program
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// https://eslint.org/docs/rules/max-len
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'max-len': ['error', 100, 2, {
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ignoreUrls: true,
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ignoreComments: false,
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ignoreRegExpLiterals: true,
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ignoreStrings: true,
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ignoreTemplateLiterals: true,
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}],
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// specify the max number of lines in a file
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// https://eslint.org/docs/rules/max-lines
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'max-lines': ['off', {
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max: 300,
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skipBlankLines: true,
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skipComments: true
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}],
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// enforce a maximum function length
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// https://eslint.org/docs/rules/max-lines-per-function
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'max-lines-per-function': ['off', {
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max: 50,
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skipBlankLines: true,
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skipComments: true,
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IIFEs: true,
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}],
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// specify the maximum depth callbacks can be nested
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'max-nested-callbacks': 'off',
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// limits the number of parameters that can be used in the function declaration.
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'max-params': ['off', 3],
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// specify the maximum number of statement allowed in a function
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'max-statements': ['off', 10],
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// restrict the number of statements per line
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// https://eslint.org/docs/rules/max-statements-per-line
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'max-statements-per-line': ['off', { max: 1 }],
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// enforce a particular style for multiline comments
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// https://eslint.org/docs/rules/multiline-comment-style
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'multiline-comment-style': ['off', 'starred-block'],
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// require multiline ternary
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// https://eslint.org/docs/rules/multiline-ternary
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// TODO: enable?
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'multiline-ternary': ['off', 'never'],
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// require a capital letter for constructors
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'new-cap': ['error', {
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newIsCap: true,
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newIsCapExceptions: [],
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capIsNew: false,
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capIsNewExceptions: ['Immutable.Map', 'Immutable.Set', 'Immutable.List'],
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}],
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// disallow the omission of parentheses when invoking a constructor with no arguments
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// https://eslint.org/docs/rules/new-parens
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'new-parens': 'error',
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// allow/disallow an empty newline after var statement
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'newline-after-var': 'off',
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// https://eslint.org/docs/rules/newline-before-return
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'newline-before-return': 'off',
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// enforces new line after each method call in the chain to make it
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// more readable and easy to maintain
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// https://eslint.org/docs/rules/newline-per-chained-call
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'newline-per-chained-call': ['error', { ignoreChainWithDepth: 4 }],
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// disallow use of the Array constructor
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'no-array-constructor': 'error',
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// disallow use of bitwise operators
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// https://eslint.org/docs/rules/no-bitwise
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'no-bitwise': 'error',
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// disallow use of the continue statement
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// https://eslint.org/docs/rules/no-continue
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'no-continue': 'error',
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// disallow comments inline after code
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'no-inline-comments': 'off',
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// disallow if as the only statement in an else block
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// https://eslint.org/docs/rules/no-lonely-if
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'no-lonely-if': 'error',
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// disallow un-paren'd mixes of different operators
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// https://eslint.org/docs/rules/no-mixed-operators
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'no-mixed-operators': ['error', {
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// the list of arithmetic groups disallows mixing `%` and `**`
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// with other arithmetic operators.
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groups: [
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['%', '**'],
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['%', '+'],
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['%', '-'],
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['%', '*'],
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['%', '/'],
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['/', '*'],
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['&', '|', '<<', '>>', '>>>'],
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['==', '!=', '===', '!=='],
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['&&', '||'],
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],
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allowSamePrecedence: false
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}],
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// disallow mixed spaces and tabs for indentation
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'no-mixed-spaces-and-tabs': 'error',
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// disallow use of chained assignment expressions
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// https://eslint.org/docs/rules/no-multi-assign
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'no-multi-assign': ['error'],
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// disallow multiple empty lines, only one newline at the end, and no new lines at the beginning
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// https://eslint.org/docs/rules/no-multiple-empty-lines
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'no-multiple-empty-lines': ['error', { max: 1, maxBOF: 0, maxEOF: 0 }],
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// disallow negated conditions
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// https://eslint.org/docs/rules/no-negated-condition
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'no-negated-condition': 'off',
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// disallow nested ternary expressions
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'no-nested-ternary': 'error',
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// disallow use of the Object constructor
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'no-new-object': 'error',
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// disallow use of unary operators, ++ and --
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// https://eslint.org/docs/rules/no-plusplus
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'no-plusplus': 'error',
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// disallow certain syntax forms
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// https://eslint.org/docs/rules/no-restricted-syntax
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'no-restricted-syntax': [
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'error',
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{
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selector: 'ForInStatement',
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message: 'for..in loops iterate over the entire prototype chain, which is virtually never what you want. Use Object.{keys,values,entries}, and iterate over the resulting array.',
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},
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{
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selector: 'ForOfStatement',
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message: 'iterators/generators require regenerator-runtime, which is too heavyweight for this guide to allow them. Separately, loops should be avoided in favor of array iterations.',
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},
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{
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selector: 'LabeledStatement',
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message: 'Labels are a form of GOTO; using them makes code confusing and hard to maintain and understand.',
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},
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{
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selector: 'WithStatement',
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message: '`with` is disallowed in strict mode because it makes code impossible to predict and optimize.',
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},
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],
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// disallow space between function identifier and application
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'no-spaced-func': 'error',
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// disallow tab characters entirely
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'no-tabs': 'error',
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// disallow the use of ternary operators
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'no-ternary': 'off',
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// disallow trailing whitespace at the end of lines
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'no-trailing-spaces': ['error', {
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skipBlankLines: false,
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ignoreComments: false,
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}],
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// disallow dangling underscores in identifiers
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// https://eslint.org/docs/rules/no-underscore-dangle
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|
'no-underscore-dangle': ['error', {
|
||
|
|
allow: [],
|
||
|
|
allowAfterThis: false,
|
||
|
|
allowAfterSuper: false,
|
||
|
|
enforceInMethodNames: true,
|
||
|
|
}],
|
||
|
|
|
||
|
|
// disallow the use of Boolean literals in conditional expressions
|
||
|
|
// also, prefer `a || b` over `a ? a : b`
|
||
|
|
// https://eslint.org/docs/rules/no-unneeded-ternary
|
||
|
|
'no-unneeded-ternary': ['error', { defaultAssignment: false }],
|
||
|
|
|
||
|
|
// disallow whitespace before properties
|
||
|
|
// https://eslint.org/docs/rules/no-whitespace-before-property
|
||
|
|
'no-whitespace-before-property': 'error',
|
||
|
|
|
||
|
|
// enforce the location of single-line statements
|
||
|
|
// https://eslint.org/docs/rules/nonblock-statement-body-position
|
||
|
|
'nonblock-statement-body-position': ['error', 'beside', { overrides: {} }],
|
||
|
|
|
||
|
|
// require padding inside curly braces
|
||
|
|
'object-curly-spacing': ['error', 'always'],
|
||
|
|
|
||
|
|
// enforce line breaks between braces
|
||
|
|
// https://eslint.org/docs/rules/object-curly-newline
|
||
|
|
'object-curly-newline': ['error', {
|
||
|
|
ObjectExpression: { minProperties: 4, multiline: true, consistent: true },
|
||
|
|
ObjectPattern: { minProperties: 4, multiline: true, consistent: true },
|
||
|
|
ImportDeclaration: { minProperties: 4, multiline: true, consistent: true },
|
||
|
|
ExportDeclaration: { minProperties: 4, multiline: true, consistent: true },
|
||
|
|
}],
|
||
|
|
|
||
|
|
// enforce "same line" or "multiple line" on object properties.
|
||
|
|
// https://eslint.org/docs/rules/object-property-newline
|
||
|
|
'object-property-newline': ['error', {
|
||
|
|
allowAllPropertiesOnSameLine: true,
|
||
|
|
}],
|
||
|
|
|
||
|
|
// allow just one var statement per function
|
||
|
|
'one-var': ['error', 'never'],
|
||
|
|
|
||
|
|
// require a newline around variable declaration
|
||
|
|
// https://eslint.org/docs/rules/one-var-declaration-per-line
|
||
|
|
'one-var-declaration-per-line': ['error', 'always'],
|
||
|
|
|
||
|
|
// require assignment operator shorthand where possible or prohibit it entirely
|
||
|
|
// https://eslint.org/docs/rules/operator-assignment
|
||
|
|
'operator-assignment': ['error', 'always'],
|
||
|
|
|
||
|
|
// Requires operator at the beginning of the line in multiline statements
|
||
|
|
// https://eslint.org/docs/rules/operator-linebreak
|
||
|
|
'operator-linebreak': ['error', 'before', { overrides: { '=': 'none' } }],
|
||
|
|
|
||
|
|
// disallow padding within blocks
|
||
|
|
'padded-blocks': ['error', {
|
||
|
|
blocks: 'never',
|
||
|
|
classes: 'never',
|
||
|
|
switches: 'never',
|
||
|
|
}, {
|
||
|
|
allowSingleLineBlocks: true,
|
||
|
|
}],
|
||
|
|
|
||
|
|
// Require or disallow padding lines between statements
|
||
|
|
// https://eslint.org/docs/rules/padding-line-between-statements
|
||
|
|
'padding-line-between-statements': 'off',
|
||
|
|
|
||
|
|
// Disallow the use of Math.pow in favor of the ** operator
|
||
|
|
// https://eslint.org/docs/rules/prefer-exponentiation-operator
|
||
|
|
'prefer-exponentiation-operator': 'error',
|
||
|
|
|
||
|
|
// Prefer use of an object spread over Object.assign
|
||
|
|
// https://eslint.org/docs/rules/prefer-object-spread
|
||
|
|
'prefer-object-spread': 'error',
|
||
|
|
|
||
|
|
// require quotes around object literal property names
|
||
|
|
// https://eslint.org/docs/rules/quote-props.html
|
||
|
|
'quote-props': ['error', 'as-needed', { keywords: false, unnecessary: true, numbers: false }],
|
||
|
|
|
||
|
|
// specify whether double or single quotes should be used
|
||
|
|
quotes: ['error', 'single', { avoidEscape: true }],
|
||
|
|
|
||
|
|
// do not require jsdoc
|
||
|
|
// https://eslint.org/docs/rules/require-jsdoc
|
||
|
|
'require-jsdoc': 'off',
|
||
|
|
|
||
|
|
// require or disallow use of semicolons instead of ASI
|
||
|
|
semi: ['error', 'always'],
|
||
|
|
|
||
|
|
// enforce spacing before and after semicolons
|
||
|
|
'semi-spacing': ['error', { before: false, after: true }],
|
||
|
|
|
||
|
|
// Enforce location of semicolons
|
||
|
|
// https://eslint.org/docs/rules/semi-style
|
||
|
|
'semi-style': ['error', 'last'],
|
||
|
|
|
||
|
|
// requires object keys to be sorted
|
||
|
|
'sort-keys': ['off', 'asc', { caseSensitive: false, natural: true }],
|
||
|
|
|
||
|
|
// sort variables within the same declaration block
|
||
|
|
'sort-vars': 'off',
|
||
|
|
|
||
|
|
// require or disallow space before blocks
|
||
|
|
'space-before-blocks': 'error',
|
||
|
|
|
||
|
|
// require or disallow space before function opening parenthesis
|
||
|
|
// https://eslint.org/docs/rules/space-before-function-paren
|
||
|
|
'space-before-function-paren': ['error', {
|
||
|
|
anonymous: 'always',
|
||
|
|
named: 'never',
|
||
|
|
asyncArrow: 'always'
|
||
|
|
}],
|
||
|
|
|
||
|
|
// require or disallow spaces inside parentheses
|
||
|
|
'space-in-parens': ['error', 'never'],
|
||
|
|
|
||
|
|
// require spaces around operators
|
||
|
|
'space-infix-ops': 'error',
|
||
|
|
|
||
|
|
// Require or disallow spaces before/after unary operators
|
||
|
|
// https://eslint.org/docs/rules/space-unary-ops
|
||
|
|
'space-unary-ops': ['error', {
|
||
|
|
words: true,
|
||
|
|
nonwords: false,
|
||
|
|
overrides: {
|
||
|
|
},
|
||
|
|
}],
|
||
|
|
|
||
|
|
// require or disallow a space immediately following the // or /* in a comment
|
||
|
|
// https://eslint.org/docs/rules/spaced-comment
|
||
|
|
'spaced-comment': ['error', 'always', {
|
||
|
|
line: {
|
||
|
|
exceptions: ['-', '+'],
|
||
|
|
markers: ['=', '!', '/'], // space here to support sprockets directives, slash for TS /// comments
|
||
|
|
},
|
||
|
|
block: {
|
||
|
|
exceptions: ['-', '+'],
|
||
|
|
markers: ['=', '!', ':', '::'], // space here to support sprockets directives and flow comment types
|
||
|
|
balanced: true,
|
||
|
|
}
|
||
|
|
}],
|
||
|
|
|
||
|
|
// Enforce spacing around colons of switch statements
|
||
|
|
// https://eslint.org/docs/rules/switch-colon-spacing
|
||
|
|
'switch-colon-spacing': ['error', { after: true, before: false }],
|
||
|
|
|
||
|
|
// Require or disallow spacing between template tags and their literals
|
||
|
|
// https://eslint.org/docs/rules/template-tag-spacing
|
||
|
|
'template-tag-spacing': ['error', 'never'],
|
||
|
|
|
||
|
|
// require or disallow the Unicode Byte Order Mark
|
||
|
|
// https://eslint.org/docs/rules/unicode-bom
|
||
|
|
'unicode-bom': ['error', 'never'],
|
||
|
|
|
||
|
|
// require regex literals to be wrapped in parentheses
|
||
|
|
'wrap-regex': 'off'
|
||
|
|
}
|
||
|
|
};
|