safely reduce in get all categories

SteamGridDB · Jun 22, 2020 · 8d1dbed · 8d1dbed
1 parent f273260
commit 8d1dbed
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/renderer/services/preview.service.ts b/src/renderer/services/preview.service.ts
@@ -368,7 +368,8 @@ export class PreviewService {
   }
 
   getAllCategories() {
-    return this.previewData ? Object.entries(this.previewData).map(dir=>Object.entries(dir[1]).map(user=>Object.entries(user[1].apps).map(app=>app[1].steamCategories).reduce((x,y)=>_.union(x,y))).reduce((x,y)=>_.union(x,y))).reduce((x,y)=>_.union(x,y)) : [];
+    const union = (x: string[],y: string[])=>_.union(x,y);
+    return this.previewData ? Object.entries(this.previewData).map(dir=>Object.entries(dir[1]).map(user=>Object.entries(user[1].apps).map(app=>app[1].steamCategories).reduce(union,[])).reduce(union,[])).reduce(union,[]) : [];
   }
 
   private clearImageCache(settingsOnly: boolean) {