Add two eslint plugins

.eslintrc.yaml

@@ -10,10 +10,12 @@ parserOptions:
 
 plugins:
   - "@eslint-community/eslint-plugin-eslint-comments"
+  - eslint-plugin-array-func
   - eslint-plugin-custom-elements
   - eslint-plugin-import
   - eslint-plugin-jquery
   - eslint-plugin-no-jquery
+  - eslint-plugin-no-use-extend-native
   - eslint-plugin-regexp
   - eslint-plugin-sonarjs
   - eslint-plugin-unicorn
@@ -59,6 +61,12 @@ rules:
   array-bracket-spacing: [2, never]
   array-callback-return: [2, {checkForEach: true}]
   array-element-newline: [0]
+  array-func/avoid-reverse: [2]
+  array-func/from-map: [2]
+  array-func/no-unnecessary-this-arg: [2]
+  array-func/prefer-array-from: [2]
+  array-func/prefer-flat-map: [0] # handled by unicorn/prefer-array-flat-map
+  array-func/prefer-flat: [0] # handled by unicorn/prefer-array-flat
   arrow-body-style: [0]
   arrow-parens: [2, always]
   arrow-spacing: [2, {before: true, after: true}]
@@ -444,6 +452,7 @@ rules:
   no-unused-private-class-members: [2]
   no-unused-vars: [2, {args: all, argsIgnorePattern: ^_, varsIgnorePattern: ^_, caughtErrorsIgnorePattern: ^_, destructuredArrayIgnorePattern: ^_, ignoreRestSiblings: false}]
   no-use-before-define: [2, {functions: false, classes: true, variables: true, allowNamedExports: true}]
+  no-use-extend-native/no-use-extend-native: [2]
   no-useless-backreference: [2]
   no-useless-call: [2]
   no-useless-catch: [2]

package.json

@@ -62,10 +62,12 @@
     "@stoplight/spectral-cli": "6.6.0",
     "@vitejs/plugin-vue": "4.2.3",
     "eslint": "8.40.0",
+    "eslint-plugin-array-func": "3.1.8",
     "eslint-plugin-custom-elements": "0.0.8",
     "eslint-plugin-import": "2.27.5",
     "eslint-plugin-jquery": "1.5.1",
     "eslint-plugin-no-jquery": "2.7.0",
+    "eslint-plugin-no-use-extend-native": "0.5.0",
     "eslint-plugin-regexp": "1.15.0",
     "eslint-plugin-sonarjs": "0.19.0",
     "eslint-plugin-unicorn": "47.0.0",

web_src/js/features/copycontent.js

@@ -36,7 +36,7 @@ export function initCopyContent() {
       }
     } else { // text, read from DOM
       const lineEls = document.querySelectorAll('.file-view .lines-code');
-      content = Array.from(lineEls).map((el) => el.textContent).join('');
+      content = Array.from(lineEls, (el) => el.textContent).join('');
     }
 
     // try copy original first, if that fails and it's an image, convert it to png

web_src/js/features/repo-projects.js

@@ -15,7 +15,7 @@ function moveIssue({item, from, to, oldIndex}) {
   updateIssueCount(to);
 
   const columnSorting = {
-    issues: [...columnCards].map((card, i) => ({
+    issues: Array.from(columnCards, (card, i) => ({
       issueID: parseInt($(card).attr('data-issue')),
       sorting: i
     }))

web_src/js/utils/match.js

@@ -3,7 +3,7 @@ import emojis from '../../../assets/emoji.json';
 const maxMatches = 6;
 
 function sortAndReduce(map) {
-  const sortedMap = new Map([...map.entries()].sort((a, b) => a[1] - b[1]));
+  const sortedMap = new Map(Array.from(map.entries()).sort((a, b) => a[1] - b[1]));
   return Array.from(sortedMap.keys()).slice(0, maxMatches);
 }