Make eslint happy

Since this code runs in a browser, we need to tell eslint that
it's going to run in a browser enviroment so things like `window`
and `document` are defined.

Signed-off-by: L. Pereira <[email protected]>

crates/explorer/eslint.config.js

@@ -1,12 +1,18 @@
-import js from "@eslint/js";
+import globals from "globals";
+import pluginJs from "@eslint/js";
 
-export default [
-  js.configs.recommended,
 
+export default [
+  {
+    files: ["**/*.js"],
+    languageOptions: {
+      sourceType: "module"
+    }
+  },
   {
-    rules: {
-      "no-unused-vars": "error",
-      "no-undef": "error",
-    },
+    languageOptions: {
+      globals: globals.browser
+    }
   },
+  pluginJs.configs.recommended,
 ];

crates/explorer/package.json

@@ -22,6 +22,7 @@
   "devDependencies": {
     "@eslint/js": "^9.3.0",
     "eslint": "^9.3.0",
+    "globals": "^15.3.0",
     "prettier": "3.2.5"
   },
   "type": "module"

crates/explorer/src/index.js

@@ -1,6 +1,6 @@
 /*** LRU Cache *****************************************************************/
 
-class Cache {
+class LruCache {
   constructor(size, getFunc) {
     // Maps preserve the insertion order, so we can use it to implement a naïve LRU
     // cache.
@@ -139,7 +139,7 @@ const renderInst = (mnemonic, operands) => {
 
 // Connects callbacks to mouse hovering events so elements are properly highlighted when
 // hovered, and the bridging element is drawn between the instruction lists.
-const linkedElementCache = new Cache(256, offset =>
+const linkedElementCache = new LruCache(256, offset =>
   document.querySelectorAll(`[data-wasm-offset="${offset}"]`),
 );
 const linkElements = element => {