Initial commit.

.gitignore

+# dependencies
+/node_modules
+
+# testing
+/coverage
+
+# production
+/build
+
+# environments
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+# logs
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# misc
+*~
+.DS_Store

base.js

+module.exports = {
+  'env': {
+    'es2020': true,
+    'browser': true,
+    'node': true,
+    'jest': true,
+  },
+  'parserOptions': {
+    'ecmaVersion': 2020,
+    'sourceType': 'module',
+    'ecmaFeatures': {
+      'jsx': true,
+    },
+  },
+  'rules': {
+    'accessor-pairs': 'warn',
+    'array-bracket-spacing': 'warn',
+    'array-callback-return': 'warn',
+    'arrow-body-style': 'warn',
+    'arrow-parens': 'warn',
+    'arrow-spacing': 'warn',
+    'block-scoped-var': 'warn',
+    'block-spacing': 'warn',
+    'brace-style': 'warn',
+    'camelcase': 'warn',
+    'comma-dangle': ['warn', 'always-multiline'],
+    'comma-spacing': 'warn',
+    'comma-style': 'warn',
+    'computed-property-spacing': 'warn',
+    'consistent-return': 'warn',
+    'consistent-this': 'warn',
+    'constructor-super': 'warn',
+    'curly': 'warn',
+    'default-case': [
+      'warn',
+      {
+        'commentPattern': '^no default$',
+      },
+    ],
+    'dot-location': ['warn', 'property'],
+    'dot-notation': 'warn',
+    'eol-last': 'warn',
+    'eqeqeq': 'warn',
+    'func-call-spacing': 'warn',
+    'func-name-matching': 'warn',
+    'func-names': ['warn', 'as-needed'],
+    'generator-star-spacing': ['warn', 'neither'],
+    'getter-return': 'warn',
+    'guard-for-in': 'off', // see no-restricted-syntax
+    'id-blacklist': ['warn', 'temp'],
+    'indent': ['warn', 2],
+    'init-declarations': 'warn',
+    'jsx-quotes': 'warn',
+    'key-spacing': 'warn',
+    'keyword-spacing': 'warn',
+    'linebreak-style': 'warn',
+    'lines-around-directive': 'warn',
+    'max-len': [
+      'warn',
+      {
+        'code': 120,
+      },
+    ],
+    'max-statements-per-line': 'warn',
+    'new-cap': 'warn',
+    'new-parens': 'warn',
+    'no-alert': 'warn',
+    'no-array-constructor': 'warn',
+    'no-caller': 'warn',
+    'no-case-declarations': 'warn',
+    'no-catch-shadow': 'warn',
+    'no-class-assign': 'warn',
+    'no-compare-neg-zero': 'warn',
+    'no-cond-assign': 'warn',
+    'no-const-assign': 'warn',
+    'no-constant-condition': 'warn',
+    'no-control-regex': 'warn',
+    'no-debugger': 'warn',
+    'no-delete-var': 'warn',
+    'no-div-regex': 'warn',
+    'no-dupe-args': 'warn',
+    'no-dupe-class-members': 'warn',
+    'no-dupe-keys': 'warn',
+    'no-duplicate-case': 'warn',
+    'no-duplicate-imports': 'warn',
+    'no-else-return': 'warn',
+    'no-empty': 'warn',
+    'no-empty-character-class': 'warn',
+    'no-empty-pattern': 'warn',
+    'no-eq-null': 'warn',
+    'no-eval': 'warn',
+    'no-ex-assign': 'warn',
+    'no-extend-native': 'warn',
+    'no-extra-bind': 'warn',
+    'no-extra-boolean-cast': 'warn',
+    'no-extra-label': 'warn',
+    'no-extra-parens': [
+      'warn',
+      'all',
+      {
+        'nestedBinaryExpressions': false,
+      },
+    ],
+    'no-extra-semi': 'warn',
+    'no-fallthrough': 'warn',
+    'no-floating-decimal': 'warn',
+    'no-func-assign': 'warn',
+    'no-global-assign': 'warn',
+    'no-implicit-coercion': 'warn',
+    'no-implied-eval': 'warn',
+    'no-inner-declarations': 'warn',
+    'no-invalid-regexp': 'warn',
+    'no-irregular-whitespace': 'warn',
+    'no-iterator': 'warn',
+    'no-label-var': 'warn',
+    'no-labels': [
+      'warn',
+      {
+        'allowLoop': true,
+        'allowSwitch': false,
+      },
+    ],
+    'no-lone-blocks': 'warn',
+    'no-lonely-if': 'warn',
+    'no-loop-func': 'warn',
+    'no-mixed-operators': [
+      'warn',
+      {
+        'groups': [
+          ['&', '|', '^', '~', '<<', '>>', '>>>'],
+          ['==', '!=', '===', '!==', '>', '>=', '<', '<='],
+          ['&&', '||'],
+          ['in', 'instanceof'],
+        ],
+        'allowSamePrecedence': false,
+      },
+    ],
+    'no-mixed-spaces-and-tabs': 'warn',
+    'no-multi-assign': 'warn',
+    'no-multi-spaces': 'warn',
+    'no-multi-str': 'warn',
+    'no-multiple-empty-lines': [
+      'warn',
+      {
+        'maxBOF': 0,
+        'max': 1,
+        'maxEOF': 0,
+      },
+    ],
+    'no-native-reassign': 'warn',
+    'no-negated-in-lhs': 'warn',
+    'no-new': 'warn',
+    'no-new-func': 'warn',
+    'no-new-object': 'warn',
+    'no-new-symbol': 'warn',
+    'no-new-wrappers': 'warn',
+    'no-obj-calls': 'warn',
+    'no-octal': 'warn',
+    'no-octal-escape': 'warn',
+    'no-param-reassign': 'warn',
+    'no-proto': 'warn',
+    'no-prototype-builtins': 'warn',
+    'no-redeclare': [
+      'warn',
+      {
+        'builtinGlobals': true,
+      },
+    ],
+    'no-regex-spaces': 'warn',
+    'no-restricted-globals': 'warn',
+    'no-restricted-properties': 'warn',
+    'no-restricted-syntax': [
+      'warn',
+      {
+        'selector': 'ForInStatement',
+        'message': 'for-in loop used (did you mean to write a for-of loop?)',
+      },
+      {
+        'selector': 'BinaryExpression[operator=\'in\']',
+        'message': 'in operator used (did you mean to call a membership-testing method?)',
+      },
+    ],
+    'no-return-assign': 'warn',
+    'no-return-await': 'warn',
+    'no-script-url': 'warn',
+    'no-self-assign': 'warn',
+    'no-self-compare': 'warn',
+    'no-sequences': 'warn',
+    'no-shadow': 'warn',
+    'no-shadow-restricted-names': 'warn',
+    'no-sparse-arrays': 'warn',
+    'no-tabs': 'warn',
+    'no-template-curly-in-string': 'warn',
+    'no-this-before-super': 'warn',
+    'no-throw-literal': 'warn',
+    'no-trailing-spaces': 'warn',
+    'no-undef': 'warn',
+    'no-underscore-dangle': [
+      'warn',
+      {
+        'allowAfterThis': true,
+        'allowAfterSuper': true,
+      },
+    ],
+    'no-unexpected-multiline': 'warn',
+    'no-unmodified-loop-condition': 'warn',
+    'no-unneeded-ternary': 'warn',
+    'no-unreachable': 'warn',
+    'no-unsafe-finally': 'warn',
+    'no-unsafe-negation': 'warn',
+    'no-unused-expressions': [
+      'warn',
+      {
+        'allowShortCircuit': false,
+        'allowTernary': false,
+        'allowTaggedTemplates': false,
+      },
+    ],
+    'no-unused-labels': 'warn',
+    'no-unused-vars': [
+      'warn',
+      {
+        'args': 'none',
+        'ignoreRestSiblings': false,
+        'varsIgnorePattern': '^_',
+      },
+    ],
+    'no-use-before-define': [
+      'warn',
+      {
+        'functions': false,
+        'classes': true,
+        'variables': true,
+      },
+    ],
+    'no-useless-call': 'warn',
+    'no-useless-computed-key': 'warn',
+    'no-useless-concat': 'warn',
+    'no-useless-constructor': 'warn',
+    'no-useless-escape': 'warn',
+    'no-useless-rename': 'warn',
+    'no-useless-return': 'warn',
+    'no-var': 'warn',
+    'no-void': 'warn',
+    'no-warning-comments': 'warn',
+    'no-whitespace-before-property': 'warn',
+    'no-with': 'warn',
+    'nonblock-statement-body-position': 'off', // see curly
+    'object-curly-newline': 'warn',
+    'object-curly-spacing': ['warn', 'always'],
+    'object-property-newline': 'warn',
+    'object-shorthand': 'warn',
+    'one-var': ['warn', 'never'],
+    'one-var-declaration-per-line': 'warn',
+    'operator-assignment': 'warn',
+    'operator-linebreak': ['warn', 'after'],
+    'padded-blocks': ['warn', 'never'],
+    'prefer-arrow-callback': 'warn',
+    'prefer-const': 'warn',
+    'prefer-numeric-literals': 'warn',
+    'prefer-promise-reject-errors': 'warn',
+    'prefer-rest-params': 'warn',
+    'prefer-spread': 'warn',
+    'prefer-template': 'warn',
+    'quote-props': ['warn', 'as-needed'],
+    'quotes': ['warn', 'single'],
+    'radix': 'warn',
+    'require-await': 'warn',
+    'require-yield': 'warn',
+    'rest-spread-spacing': 'warn',
+    'semi': 'warn',
+    'semi-spacing': 'warn',
+    'space-before-function-paren': ['warn', 'never'],
+    'space-in-parens': 'warn',
+    'space-infix-ops': 'warn',
+    'space-unary-ops': 'warn',
+    'spaced-comment': 'warn',
+    'strict': ['warn', 'never'],
+    'symbol-description': 'warn',
+    'template-curly-spacing': 'warn',
+    'unicode-bom': 'warn',
+    'use-isnan': 'warn',
+    'valid-jsdoc': 'warn',
+    'valid-typeof': 'warn',
+    'wrap-iife': 'warn',
+    'yield-star-spacing': 'warn',
+    'yoda': 'warn',
+  },
+  'reportUnusedDisableDirectives': true,
+};

index.js

+module.exports = {
+  "extends": "./base",
+  "rules": {
+    "no-magic-numbers": ["warn", {
+      "ignore": [-1, 0, 0.001, 0.5, 1, 2, 10, 100, 180, 360, 1000, "-1n", "0n", "1n", "2n", "4n"],
+      "detectObjects": true,
+    }],
+  },
+}

package.json

+{
+  "name": "@unlsoft/eslint-config",
+  "version": "1.0.0",
+  "description": "ESLint configuration used by the UNL SOFT core courses.",
+  "private": true,
+  "license": "UNLICENSED",
+  "devDependencies": {
+    "eslint": ">= 6"
+  },
+  "peerDependencies": {
+    "eslint": ">= 6"
+  }
+}

react.js

+module.exports = {
+  "extends": "./base",
+  "rules": {
+    "no-magic-numbers": ["warn", {
+      "ignore": [-1, 0, 0.001, 0.5, 1, 2, 10, 100, 180, 360, 1000],
+      "detectObjects": true,
+    }],
+  },
+}