Add eslint & fix the one issue it found

.pre-commit-config.yaml

@@ -68,6 +68,15 @@ repos:
     hooks:
       - id: flake8
 
+  # Lint: JS code
+  - repo: https://github.com/pre-commit/mirrors-eslint
+    rev: "v8.56.0" # Use the sha / tag you want to point at
+    hooks:
+      - id: eslint
+        files: \.jsx?$
+        types: [file]
+        exclude: jupyter_remote_desktop_proxy/static/dist
+
 # Content here is mostly copied from other locations, so lets not make
 # formatting changes in it.
 exclude: share

js/index.js

@@ -11,7 +11,7 @@ let desktopName;
 
 // When this function is called we have
 // successfully connected to a server
-function connectedToServer(e) {
+function connectedToServer() {
   status("Connected to " + desktopName);
 }
 

package.json

@@ -8,6 +8,7 @@
   },
   "devDependencies": {
     "babel-loader": "^9.1.3",
+    "eslint": "^8.56.0",
     "webpack": "^5.90.1",
     "webpack-cli": "^5.1.4"
   }