eslint-config-resultsdm/rules/best-practices.js

Results Driven Marketing's ESLint config, following our styleguide

module.exports = {
  rules: {
    // Enforces getter/setter pairs in objects
    'accessor-pairs': 0,
    // Treat var statements as if they were block scoped
    'block-scoped-var': 2,
    // Specify the maximum cyclomatic complexity allowed in a program
    complexity: [0, 11],
    // Require return statements to either always or never specify values
    'consistent-return': 2,
    // Specify curly brace conventions for all control statements
    curly: [2, 'multi-line'],
    // Require default case in switch statements
    'default-case': 2,
    // Encourages use of dot notation whenever possible
    'dot-notation': [2, { allowKeywords: true }],
    // Enforces consistent newlines before or after dots
    'dot-location': 0,
    // Require the use of === and !==
    eqeqeq: 2,
    // Make sure for-in loops have an if statement
    'guard-for-in': 2,
    // Disallow the use of alert, confirm, and prompt
    'no-alert': 1,
    // Disallow use of arguments.caller or arguments.callee
    'no-caller': 2,
    // Disallow lexical declarations in case/default clauses
    // http://eslint.org/docs/rules/no-case-declarations.html
    'no-case-declarations': 2,
    // Disallow division operators explicitly at beginning of regular expression
    'no-div-regex': 0,
    // Disallow else after a return in an if
    'no-else-return': 2,
    // Disallow use of labels for anything other then loops and switches
    'no-empty-label': 2,
    // Disallow comparisons to null without a type-checking operator
    'no-eq-null': 0,
    // Disallow use of eval()
    'no-eval': 2,
    // Disallow adding to native types
    'no-extend-native': 2,
    // Disallow unnecessary function binding
    'no-extra-bind': 2,
    // Disallow fallthrough of case statements
    'no-fallthrough': 2,
    // Disallow the use of leading or trailing decimal points in numeric literals
    'no-floating-decimal': 2,
    // Disallow the type conversions with shorter notations
    'no-implicit-coercion': 0,
    // Disallow use of eval()-like methods
    'no-implied-eval': 2,
    // Disallow this keywords outside of classes or class-like objects
    'no-invalid-this': 0,
    // Disallow usage of __iterator__ property
    'no-iterator': 2,
    // Disallow use of labeled statements
    'no-labels': 2,
    // Disallow unnecessary nested blocks
    'no-lone-blocks': 2,
    // Disallow creation of functions within loops
    'no-loop-func': 2,
    // Disallow use of multiple spaces
    'no-multi-spaces': 2,
    // Disallow use of multiline strings
    'no-multi-str': 2,
    // Disallow reassignments of native objects
    'no-native-reassign': 2,
    // Disallow use of new operator when not part of the assignment or comparison
    'no-new': 2,
    // Disallow use of new operator for Function object
    'no-new-func': 2,
    // Disallows creating new instances of String,Number, and Boolean
    'no-new-wrappers': 2,
    // Disallow use of (old style) octal literals
    'no-octal': 2,
    // Disallow use of octal escape sequences in string literals, such as
    // var foo = 'Copyright \251';
    'no-octal-escape': 2,
    // Disallow reassignment of function parameters
    // Disallow parameter object manipulation
    // Rule: http://eslint.org/docs/rules/no-param-reassign.html
    'no-param-reassign': [2, { props: true }],
    // Disallow use of process.env
    'no-process-env': 0,
    // Disallow usage of __proto__ property
    'no-proto': 2,
    // Disallow declaring the same variable more then once
    'no-redeclare': 2,
    // Disallow use of assignment in return statement
    'no-return-assign': 2,
    // Disallow use of `javascript:` urls.
    'no-script-url': 2,
    // Disallow comparisons where both sides are exactly the same
    'no-self-compare': 2,
    // Disallow use of comma operator
    'no-sequences': 2,
    // Restrict what can be thrown as an exception
    'no-throw-literal': 2,
    // Disallow usage of expressions in statement position
    'no-unused-expressions': 2,
    // Disallow unnecessary .call() and .apply()
    'no-useless-call': 0,
    // Disallow use of void operator
    'no-void': 0,
    // Disallow usage of configurable warning terms in comments: e.g. todo
    'no-warning-comments': [0, { terms: ['todo', 'fixme', 'xxx'], location: 'start' }],
    // Disallow use of the with statement
    'no-with': 2,
    // Require use of the second argument for parseInt()
    radix: 2,
    // Requires to declare all vars on top of their containing scope
    'vars-on-top': 2,
    // Require immediate function invocation to be wrapped in parentheses
    // http://eslint.org/docs/rules/wrap-iife.html
    'wrap-iife': [2, 'outside'],
    // Require or disallow Yoda conditions
    yoda: 2,
  },
};