Use eslint

eslint.config.js

@@ -0,0 +1,26 @@
+import js from '@eslint/js';
+import globals from 'globals';
+import css from '@eslint/css';
+import { defineConfig } from 'eslint/config';
+
+export default defineConfig([
+  {
+    files: ['**/*.{js,mjs,cjs}'],
+    plugins: { js },
+    extends: ['js/recommended'],
+  },
+  {
+    files: ['**/*.{js,mjs,cjs}'],
+    languageOptions: { globals: { ...globals.browser, ...globals.node } },
+  },
+  {
+    rules: {
+      'no-unused-vars': [
+        'error',
+        {
+          caughtErrors: 'none',
+        },
+      ],
+    },
+  },
+]);

integrations/my_add_tooltips.js

@@ -1,4 +1,5 @@
 import { visit } from 'unist-util-visit';
+import fs from 'fs';
 
 // Add a tooltip to constant values in the text according to the mapping in the
 // supplied file.

integrations/my_htaccess.js

@@ -1,3 +1,5 @@
+import fs from 'fs';
+
 // Write a .htaccess file to set the correct 404 page
 
 function writeHtaccess(base, dir, logger) {

integrations/my_search_index.js

@@ -8,7 +8,7 @@ const searchIndex = [];
 function isExcludedFrontmatter(frontmatter, exclude) {
   for (let i = 0; i < exclude.frontmatter.length; i++) {
     const test = exclude.frontmatter[i];
-    const [key, ...rest] = Object.keys(test);
+    const key = Object.keys(test)[0];
     if (
       Object.prototype.hasOwnProperty.call(frontmatter, key) &&
       frontmatter[key] == test[key]

integrations/my_svg_inline.js

@@ -2,6 +2,7 @@ import { visit } from 'unist-util-visit';
 import { optimize } from 'svgo';
 import { getHashDigest } from 'loader-utils';
 import path from 'path';
+import fs from 'fs';
 
 // Inline SVG files into the Markdown AST
 

package.json

@@ -34,5 +34,10 @@
     "rehype-katex": "^7.0.1",
     "remark-math": "^6.0.0",
     "svgo": "^4.0.0-rc.4"
+  },
+  "devDependencies": {
+    "@eslint/js": "^9.27.0",
+    "eslint": "^9.27.0",
+    "globals": "^16.1.0"
   }
 }