🔧 Require spacing inside of curly braces

__tests__/index.test.js

@@ -3,15 +3,15 @@
 const eslint = require('eslint');
 const isPlainObj = require('is-plain-obj');
 
-it('should export an object', function() {
+it('should export an object', () => {
   const config = require('../index');
 
   expect(isPlainObj(config)).toBe(true);
   expect(config.extends).toBeTruthy();
   expect(config.parser).toBeTruthy();
 });
 
-it('should not contain invalid rules', function() {
+it('should not contain invalid rules', () => {
   const cli = new eslint.CLIEngine({
     configFile: 'index.js',
     useEslintrc: false,

rules/babel.js

@@ -6,7 +6,7 @@ module.exports = {
   ],
   rules: {
     // require constructor names to begin with a capital letter (ignores decorators)
-    'babel/new-cap': ['error', {capIsNew: false, newIsCap: true}],
+    'babel/new-cap': ['error', { capIsNew: false, newIsCap: true }],
 
     // disallow this keywords outside of classes or class-like objects (includes class properties)
     'babel/no-invalid-this': 'error',

rules/best-practices.js

@@ -54,7 +54,7 @@ module.exports = {
     'no-else-return': 'error',
 
     // disallow empty functions
-    'no-empty-function': ['error', {allow: ['arrowFunctions', 'functions', 'methods']}],
+    'no-empty-function': ['error', { allow: ['arrowFunctions', 'functions', 'methods'] }],
 
     // disallow empty destructuring patterns
     'no-empty-pattern': 'error',
@@ -209,7 +209,7 @@ module.exports = {
     'no-with': 'error',
 
     // require using Error objects as Promise rejection reasons
-    'prefer-promise-reject-errors': ['error', {allowEmptyReject: true}],
+    'prefer-promise-reject-errors': ['error', { allowEmptyReject: true }],
 
     // enforce the consistent use of the radix argument when using parseInt()
     'radix': 'error',

rules/ecmascript-6.js

@@ -31,7 +31,7 @@ module.exports = {
     'no-class-assign': 'error',
 
     // disallow arrow functions where they could be confused with comparisons
-    'no-confusing-arrow': ['error', {allowParens: true}],
+    'no-confusing-arrow': ['error', { allowParens: true }],
 
     // disallow reassigning const variables
     'no-const-assign': 'error',
@@ -64,10 +64,10 @@ module.exports = {
     'no-var': 'error',
 
     // require or disallow method and property shorthand syntax for object literals
-    'object-shorthand': ['error', 'always', {avoidQuotes: true}],
+    'object-shorthand': ['error', 'always', { avoidQuotes: true }],
 
     // require arrow functions as callbacks
-    'prefer-arrow-callback': ['error', {allowNamedFunctions: true}],
+    'prefer-arrow-callback': ['error', { allowNamedFunctions: true }],
 
     // require const declarations for variables that are never reassigned after declared
     'prefer-const': 'error',

rules/import.js

@@ -12,7 +12,7 @@ module.exports = {
     'import/export': 'error',
 
     // ensure consistent use of file extension within the import path
-    'import/extensions': ['error', {js: 'never', json: 'always'}],
+    'import/extensions': ['error', { js: 'never', json: 'always' }],
 
     // ensure all imports appear before other statements
     'import/first': ['error', 'absolute-first'],

rules/possible-errors.js

@@ -6,7 +6,7 @@ module.exports = {
     'for-direction': 'error',
 
     // enforce return statements in getters
-    'getter-return': ['error', {allowImplicit: true}],
+    'getter-return': ['error', { allowImplicit: true }],
 
     // disallow await inside of loops
     'no-await-in-loop': 'error',
@@ -102,6 +102,6 @@ module.exports = {
     'valid-jsdoc': 'off',
 
     // enforce comparing typeof expressions against valid strings
-    'valid-typeof': ['error', {requireStringLiterals: true}],
+    'valid-typeof': ['error', { requireStringLiterals: true }],
   },
 };

rules/stylistic-issues.js

@@ -3,13 +3,13 @@
 module.exports = {
   rules: {
     // enforce linebreaks after opening and before closing array brackets
-    'array-bracket-newline': ['error', {minItems: 3, multiline: true}],
+    'array-bracket-newline': ['error', { minItems: 3, multiline: true }],
 
     // enforce consistent spacing inside array brackets
     'array-bracket-spacing': 'error',
 
     // enforce line breaks after each array element
-    'array-element-newline': ['error', {minItems: 3, multiline: true}],
+    'array-element-newline': ['error', { minItems: 3, multiline: true }],
 
     // enforce consistent spacing inside single-line blocks
     'block-spacing': 'error',
@@ -57,13 +57,17 @@ module.exports = {
     'id-blacklist': 'off',
 
     // enforce minimum and maximum identifier lengths
-    'id-length': ['error', {exceptions: ['x', 'y', 'i', 'j', 't', '_', '$']}],
+    'id-length': ['error', { exceptions: ['x', 'y', 'i', 'j', 't', '_', '$'] }],
 
     // require identifiers to match a specified regular expression
     'id-match': 'off',
 
     // enforce consistent indentation
-    'indent': ['error', 2, {MemberExpression: 1, SwitchCase: 1, VariableDeclarator: {const: 3, let: 2, var: 2}}],
+    'indent': ['error', 2, {
+      MemberExpression: 1,
+      SwitchCase: 1,
+      VariableDeclarator: { const: 3, let: 2, var: 2 },
+    }],
 
     // enforce the consistent use of either double or single quotes in JSX attributes
     'jsx-quotes': 'error',
@@ -87,10 +91,10 @@ module.exports = {
     'max-depth': 'error',
 
     // enforce a maximum line length
-    'max-len': ['error', 119, 2, {ignoreComments: false, ignoreUrls: true}],
+    'max-len': ['error', 119, 2, { ignoreComments: false, ignoreUrls: true }],
 
     // enforce a maximum number of lines per file
-    'max-lines': ['error', {skipBlankLines: true, skipComments: true}],
+    'max-lines': ['error', { skipBlankLines: true, skipComments: true }],
 
     // enforce a maximum depth that callbacks can be nested
     'max-nested-callbacks': ['error', 3],
@@ -141,7 +145,7 @@ module.exports = {
     'no-multi-assign': 'error',
 
     // disallow multiple empty lines
-    'no-multiple-empty-lines': ['error', {max: 2, maxEOF: 1}],
+    'no-multiple-empty-lines': ['error', { max: 2, maxEOF: 1 }],
 
     // disallow negated conditions
     'no-negated-condition': 'error',
@@ -183,10 +187,10 @@ module.exports = {
     'object-curly-newline': 'off',
 
     // enforce consistent spacing inside braces
-    'object-curly-spacing': 'off',
+    'object-curly-spacing': ['error', 'always', { arraysInObjects: true, objectsInObjects: false }],
 
     // enforce placing object properties on separate lines
-    'object-property-newline': ['error', {allowMultiplePropertiesPerLine: true}],
+    'object-property-newline': ['error', { allowMultiplePropertiesPerLine: true }],
 
     // enforce variables to be declared either together or separately in functions
     'one-var': ['error', 'never'],
@@ -230,7 +234,7 @@ module.exports = {
     'quote-props': ['error', 'consistent-as-needed'],
 
     // enforce the consistent use of either backticks, double, or single quotes
-    'quotes': ['error', 'single', {avoidEscape: true}],
+    'quotes': ['error', 'single', { avoidEscape: true }],
 
     // require JSDoc comments
     'require-jsdoc': 'off',