chore: simplify eslint configuration (#44347)

* chore: extend import/recommended

* chore: use recommended lint rules

* refactor: apply lint rules

* chore: drop used config

.eslintrc-base.json

@@ -1,179 +0,0 @@
-{
-  "rules": {
-    "max-len": [
-      "error",
-      { "code": 80, "ignoreUrls": true, "ignoreTemplateLiterals": true }
-    ],
-    "block-scoped-var": 0,
-    "brace-style": [2, "1tbs", { "allowSingleLine": true }],
-    "camelcase": 2,
-    "comma-dangle": 2,
-    "comma-spacing": [2, { "before": false, "after": true }],
-    "comma-style": [2, "last"],
-    "complexity": 0,
-    "consistent-return": 2,
-    "consistent-this": 0,
-    "curly": 2,
-    "default-case": 2,
-    "dot-notation": 0,
-    "eol-last": 2,
-    "eqeqeq": 2,
-    "func-call-spacing": 2,
-    "func-names": 0,
-    "func-style": 0,
-    "guard-for-in": 2,
-    "handle-callback-err": 2,
-    "import/default": 2,
-    "import/export": 2,
-    "import/extensions": [0, "always"],
-    "import/first": 2,
-    "import/named": 2,
-    "import/namespace": 2,
-    "import/newline-after-import": 2,
-    "import/no-duplicates": 2,
-    "import/no-unresolved": [2, { "commonjs": true }],
-    "import/order": [2, { "alphabetize": { "order": "asc" } }],
-    "import/unambiguous": 2,
-    "import/no-anonymous-default-export": 2,
-    "jsx-quotes": [2, "prefer-single"],
-    "key-spacing": [2, { "beforeColon": false, "afterColon": true }],
-    "keyword-spacing": [2],
-    "max-depth": 0,
-    "max-nested-callbacks": 0,
-    "max-params": 0,
-    "max-statements": 0,
-    "new-cap": 0,
-    "new-parens": 2,
-    "no-alert": 2,
-    "no-array-constructor": 2,
-    "no-bitwise": 2,
-    "no-caller": 2,
-    "no-cond-assign": 2,
-    "no-console": 0,
-    "no-constant-condition": 2,
-    "no-control-regex": 2,
-    "no-debugger": 2,
-    "no-delete-var": 2,
-    "no-div-regex": 2,
-    "no-dupe-keys": 2,
-    "no-else-return": 0,
-    "no-empty": 2,
-    "no-empty-character-class": 2,
-    "no-eq-null": 2,
-    "no-eval": 2,
-    "no-ex-assign": 2,
-    "no-extend-native": 2,
-    "no-extra-bind": 2,
-    "no-extra-boolean-cast": 2,
-    "no-extra-parens": 0,
-    "no-extra-semi": 2,
-    "no-fallthrough": 2,
-    "no-floating-decimal": 2,
-    "no-func-assign": 2,
-    "no-global-assign": 2,
-    "no-implied-eval": 2,
-    "no-inline-comments": 2,
-    "no-inner-declarations": 2,
-    "no-invalid-regexp": 2,
-    "no-irregular-whitespace": 2,
-    "no-iterator": 2,
-    "no-label-var": 2,
-    "no-labels": 2,
-    "no-lone-blocks": 2,
-    "no-lonely-if": 2,
-    "no-loop-func": 2,
-    "no-mixed-requires": 0,
-    "no-mixed-spaces-and-tabs": 2,
-    "no-multi-spaces": 2,
-    "no-multi-str": 2,
-    "no-multiple-empty-lines": [2, { "max": 2 }],
-    "no-nested-ternary": 2,
-    "no-new": 2,
-    "no-new-func": 2,
-    "no-new-object": 2,
-    "no-new-require": 2,
-    "no-new-wrappers": 2,
-    "no-obj-calls": 2,
-    "no-octal": 2,
-    "no-octal-escape": 2,
-    "no-path-concat": 2,
-    "no-plusplus": 0,
-    "no-process-env": 0,
-    "no-process-exit": 2,
-    "no-proto": 2,
-    "no-regex-spaces": 2,
-    "no-reserved-keys": 0,
-    "no-restricted-modules": 0,
-    "no-return-assign": 2,
-    "no-script-url": 2,
-    "no-self-compare": 2,
-    "no-sequences": 2,
-    "no-shadow": 0,
-    "no-shadow-restricted-names": 2,
-    "no-sparse-arrays": 2,
-    "no-sync": 0,
-    "no-ternary": 0,
-    "no-trailing-spaces": 2,
-    "no-undef": 2,
-    "no-undef-init": 2,
-    "no-undefined": 2,
-    "no-underscore-dangle": 0,
-    "no-unreachable": 2,
-    "no-unsafe-negation": 2,
-    "no-unused-expressions": 2,
-    "no-unused-vars": 2,
-    "no-use-before-define": 0,
-    "no-useless-rename": 2,
-    "no-void": 0,
-    "no-warning-comments": [2, { "terms": ["fixme"], "location": "start" }],
-    "no-with": 2,
-    "one-var": 0,
-    "operator-assignment": 0,
-    "padded-blocks": 0,
-    "prefer-object-spread/prefer-object-spread": 2,
-    "quote-props": [2, "as-needed"],
-    "quotes": [2, "single", "avoid-escape"],
-    "radix": 2,
-    "react/display-name": 2,
-    "react/jsx-boolean-value": [2, "always"],
-    "react/jsx-closing-bracket-location": [
-      2,
-      { "selfClosing": "line-aligned", "nonEmpty": "props-aligned" }
-    ],
-    "react/jsx-no-undef": 2,
-    "react/jsx-sort-props": [2, { "ignoreCase": true }],
-    "react/jsx-uses-react": 2,
-    "react/jsx-uses-vars": 2,
-    "react/jsx-wrap-multilines": 2,
-    "react/jsx-fragments": 2,
-    "react/no-did-mount-set-state": 2,
-    "react/no-did-update-set-state": 2,
-    "react/no-multi-comp": [2, { "ignoreStateless": true }],
-    "react/no-unescaped-entities": 0,
-    "react/no-unknown-property": 2,
-    "react/prop-types": 2,
-    "react/react-in-jsx-scope": 2,
-    "react/self-closing-comp": 2,
-    "react/sort-prop-types": 2,
-    "react-hooks/rules-of-hooks": "error",
-    "react-hooks/exhaustive-deps": "error",
-    "semi": [2, "always"],
-    "semi-spacing": [2, { "before": false, "after": true }],
-    "sort-vars": 0,
-    "space-before-blocks": [2, "always"],
-    "space-before-function-paren": [2, "never"],
-    "space-in-brackets": 0,
-    "space-in-parens": 0,
-    "space-infix-ops": 2,
-    "space-unary-ops": [2, { "words": true, "nonwords": false }],
-    "spaced-comment": [2, "always", { "exceptions": ["-"] }],
-    "strict": 0,
-    "use-isnan": 2,
-    "valid-jsdoc": 0,
-    "valid-typeof": 2,
-    "vars-on-top": 0,
-    "wrap-iife": [2, "any"],
-    "wrap-regex": 2,
-    "yoda": 0
-  }
-}

.eslintrc.json

@@ -9,20 +9,14 @@
   "parser": "babel-eslint",
   "root": true,
   "extends": [
-    "./.eslintrc-base.json",
+    "eslint:recommended",
+    "plugin:react/recommended",
+    "plugin:react-hooks/recommended",
+    "plugin:import/recommended",
     "plugin:import/typescript",
     "plugin:jsx-a11y/recommended",
     "prettier"
   ],
-  "plugins": [
-    "react",
-    "import",
-    "prefer-object-spread",
-    "react-hooks",
-    "jsx-a11y",
-    "jest-dom",
-    "testing-library"
-  ],
   "globals": {
     "Promise": true,
     "window": true,
@@ -33,11 +27,13 @@
   },
   "settings": {
     "react": {
-      "version": "16.4.2",
+      "version": "16.4.2"
-      "import/ignore": ["\\.json$"],
+    }
-      "import/extensions": [".js", ".jsx", ".tsx", ".ts"]
+  },
-    },
+  "rules": {
-    "import/ignore": ["node_modules"]
+    "import/named": 2,
+    "import/no-named-as-default": 0,
+    "import/no-named-as-default-member": 0
   },
   "overrides": [
     {
@@ -56,6 +52,7 @@
       ],
       "plugins": ["@typescript-eslint"],
       "rules": {
+        "import/named": 0,
         "@typescript-eslint/naming-convention": [
           "error",
           {
@@ -104,7 +101,11 @@
         "./tools/ui-components/**/*.test.[jt]s?(x)",
         "./client/**/*.test.[jt]s?(x)"
       ],
-      "extends": ["plugin:testing-library/react", "plugin:jest-dom/recommended"]
+      "extends": [
+        "plugin:testing-library/react",
+        "plugin:jest-dom/recommended"
+      ],
+      "rules": { "import/named": 2 }
     },
     {
       "files": ["cypress/**/*.js"],

client/i18n/schema-validation.js

@@ -202,7 +202,8 @@ const motivationSchemaValidation = languages => {
     if (
       !fileJson.motivationalQuotes.every(
         object =>
-          object.hasOwnProperty('quote') && object.hasOwnProperty('author')
+          Object.prototype.hasOwnProperty.call(object, 'quote') &&
+          Object.prototype.hasOwnProperty.call(object, 'author')
       )
     ) {
       console.warn(`${language}/motivation.json has malformed quote objects.`);

client/plugins/fcc-source-challenges/create-challenge-nodes.js

@@ -31,7 +31,6 @@ function createChallengeNode(challenge, reporter) {
     type: challenge.challengeType === 7 ? 'CertificateNode' : 'ChallengeNode'
   };
 
-  /* eslint-disable prefer-object-spread/prefer-object-spread */
   return JSON.parse(
     JSON.stringify(
       Object.assign(

client/plugins/fcc-source-challenges/gatsby-node.js

@@ -29,7 +29,7 @@ exports.sourceNodes = function sourceChallengesSourceNodes(
   }
   const { createNode } = actions;
   const watcher = chokidar.watch(curriculumPath, {
-    ignored: /(^|[\/\\])\../,
+    ignored: /(^|[/\\])\../,
     ignoreInitial: true,
     persistent: true,
     usePolling: true,

client/src/client/frame-runner.ts

@@ -62,7 +62,7 @@ async function initTestFrame(e: InitTestFrameArg = { code: {} }) {
     Object.freeze(o);
     Object.getOwnPropertyNames(o).forEach(function (prop) {
       if (
-        o.hasOwnProperty(prop) &&
+        Object.prototype.hasOwnProperty.call(o, prop) &&
         o[prop] !== null &&
         (typeof o[prop] === 'object' || typeof o[prop] === 'function') &&
         !Object.isFrozen(o[prop])

client/src/components/helpers/skeleton-sprite.tsx

@@ -2,10 +2,7 @@ import React from 'react';
 
 import styles from './skeleton-styles';
 
-// TODO: unsure about parameter typing
+function SkeletonSprite(): JSX.Element {
-function SkeletonSprite({}: React.FC<
-  React.ComponentPropsWithoutRef<'svg'>
->): JSX.Element {
   return (
     <div className='sprite-container'>
       <style dangerouslySetInnerHTML={{ __html: styles }} />

client/src/components/search/with-instant-search.tsx

@@ -109,7 +109,7 @@ function InstantSearchRoot({
         if (
           location.state &&
           typeof location.state === 'object' &&
-          location.state.hasOwnProperty('query')
+          Object.prototype.hasOwnProperty.call(location.state, 'query')
         ) {
           updateSearchQuery(location.state.query);
         } else if (location.search) {

client/src/templates/Challenges/utils/build.js

@@ -92,7 +92,7 @@ const buildFunctions = {
 
 export function canBuildChallenge(challengeData) {
   const { challengeType } = challengeData;
-  return buildFunctions.hasOwnProperty(challengeType);
+  return Object.prototype.hasOwnProperty.call(buildFunctions, challengeType);
 }
 
 export async function buildChallenge(challengeData, options) {

client/src/templates/Introduction/super-block-intro.tsx

@@ -122,7 +122,10 @@ const SuperBlockIntroductionPage = (props: SuperBlockProp) => {
     if (
       location.state &&
       typeof location.state === 'object' &&
-      location.state.hasOwnProperty('breadcrumbBlockClick')
+      Object.prototype.hasOwnProperty.call(
+        location.state,
+        'breadcrumbBlockClick'
+      )
     ) {
       return location.state.breadcrumbBlockClick;
     }

cypress/integration/learn/challenges/projects.js

@@ -1,4 +1,3 @@
-/* global cy */
 import { SuperBlocks } from '../../../../config/certification-settings';
 
 const selectors = {

package-lock.json

@@ -64,7 +64,7 @@
         "eslint-plugin-jsx-a11y": "6.5.1",
         "eslint-plugin-prefer-object-spread": "1.2.1",
         "eslint-plugin-react": "7.27.1",
-        "eslint-plugin-react-hooks": "2.5.1",
+        "eslint-plugin-react-hooks": "^4.3.0",
         "eslint-plugin-testing-library": "4.12.4",
         "execa": "5.1.1",
         "faker": "5.5.3",
@@ -11731,14 +11731,15 @@
       }
     },
     "node_modules/eslint-plugin-react-hooks": {
-      "version": "2.5.1",
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-react-hooks/-/eslint-plugin-react-hooks-4.3.0.tgz",
+      "integrity": "sha512-XslZy0LnMn+84NEG9jSGR6eGqaZB3133L8xewQo3fQagbQuGt7a63gf+P1NGKZavEYEC3UXaWEAA/AqDkuN6xA==",
       "dev": true,
-      "license": "MIT",
       "engines": {
-        "node": ">=7"
+        "node": ">=10"
       },
       "peerDependencies": {
-        "eslint": "^3.0.0 || ^4.0.0 || ^5.0.0 || ^6.0.0"
+        "eslint": "^3.0.0 || ^4.0.0 || ^5.0.0 || ^6.0.0 || ^7.0.0 || ^8.0.0-0"
       }
     },
     "node_modules/eslint-plugin-react/node_modules/estraverse": {
@@ -32638,7 +32639,9 @@
       }
     },
     "eslint-plugin-react-hooks": {
-      "version": "2.5.1",
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-react-hooks/-/eslint-plugin-react-hooks-4.3.0.tgz",
+      "integrity": "sha512-XslZy0LnMn+84NEG9jSGR6eGqaZB3133L8xewQo3fQagbQuGt7a63gf+P1NGKZavEYEC3UXaWEAA/AqDkuN6xA==",
       "dev": true,
       "requires": {}
     },

package.json

@@ -143,7 +143,7 @@
     "eslint-plugin-jsx-a11y": "6.5.1",
     "eslint-plugin-prefer-object-spread": "1.2.1",
     "eslint-plugin-react": "7.27.1",
-    "eslint-plugin-react-hooks": "2.5.1",
+    "eslint-plugin-react-hooks": "^4.3.0",
     "eslint-plugin-testing-library": "4.12.4",
     "execa": "5.1.1",
     "faker": "5.5.3",

tools/challenge-helper-scripts/create-project.ts

@@ -230,7 +230,7 @@ prompt([
       if (!block.length) {
         return 'please enter a short name';
       }
-      if (/[^a-z0-9\-]/.test(block)) {
+      if (/[^a-z0-9-]/.test(block)) {
         return 'please use alphanumerical characters and kebab case';
       }
       return true;

tools/crowdin/actions/remove-deleted-files/index.js

@@ -35,7 +35,12 @@ const removeDeletedFiles = async projectId => {
         return { ...obj, [filename]: 1 };
       }, {});
       for (let { fileId, path: crowdinFilePath } of crowdinFiles) {
-        if (!curriculumLookup.hasOwnProperty(crowdinFilePath)) {
+        if (
+          !Object.prototype.hasOwnProperty.call(
+            curriculumLookup,
+            crowdinFilePath
+          )
+        ) {
           await deleteFile(projectId, fileId, crowdinFilePath);
         }
       }

tools/scripts/lint/linter/markdown-prism.js

@@ -16,7 +16,7 @@ module.exports = {
         if (baseLang && !lang) {
           onError({
             lineNumber: codeBlock.lineNumber,
-            detail: `\'${baseLang}\' is not recognised.`
+            detail: `'${baseLang}' is not recognised.`
           });
         }
       });