diff --git a/static/player/quality.ts b/static/player/quality.ts
index 9714520..bf6389b 100644
--- a/static/player/quality.ts
+++ b/static/player/quality.ts
@@ -1,41 +1,42 @@
-import { state } from "./state";
 import { streamUrlForMode } from "./source";
+import { state } from "./state";
 import { safeLocalStorage } from "./storage";
 import { loadVideoSource } from "./video";
 
-/**
- * Switches video quality (resolution).
- * Persists preference to localStorage.
- */
+/** Switches video quality (resolution). Persists preference to localStorage. */
 const switchQuality = (quality: string): void => {
   const url = streamUrlForMode(state.playback.currentMode, quality);
-  if (!url) return;
+  if (!url) {
+    return;
+  }
   safeLocalStorage.setItem("mal:preferred-quality", quality);
   loadVideoSource(url, state.playback.modeSources[state.playback.currentMode]?.type);
 };
 
 /**
- * Rebuilds quality dropdown options from current mode's available qualities.
- * Shows/hides dropdown based on availability.
+ * Rebuilds quality dropdown options from current mode's available qualities. Shows/hides dropdown
+ * based on availability.
  */
 export const updateQualityOptions = (): void => {
   const select = state.elements.container.querySelector(
     "[data-quality-select]",
   ) as HTMLSelectElement | null;
-  if (!select) return;
+  if (!select) {
+    return;
+  }
   const qualities = state.playback.modeSources[state.playback.currentMode]?.qualities ?? [];
   select.replaceChildren();
 
   const best = document.createElement("option");
   best.value = "best";
   best.textContent = "Auto / Best";
-  select.appendChild(best);
+  select.append(best);
 
   qualities.forEach((q) => {
     const opt = document.createElement("option");
     opt.value = q;
     opt.textContent = q;
-    select.appendChild(opt);
+    select.append(opt);
   });
 
   // restore saved preference
@@ -47,9 +48,7 @@ export const updateQualityOptions = (): void => {
   wrapper?.classList.toggle("hidden", qualities.length === 0);
 };
 
-/**
- * Binds quality select change handler.
- */
+/** Binds quality select change handler. */
 export const setupQuality = (): void => {
   const select = state.elements.container.querySelector(
     "[data-quality-select]",