Merge pull request #41 from xpquiz/develop

Hotfix

Author: isahann

src/app/score-window/score-window.component.html

@@ -17,11 +17,11 @@
       </div>
     </div>
 
-    <div class="window-body_previous-scores">
+    <div class="window-body_previous-scores" *ngIf="this.previousScores?.size !== 0">
       <label class="window-body_previous-scores_title">Here are your previous results:</label>
       <ul class="tree-view">
         <li>
-          <ng-container *ngFor="let keyValue of previousScores! | keyvalue">
+          <ng-container *ngFor="let keyValue of this.previousScores! | keyvalue">
             <details>
               <summary>🗓 Week <b>{{keyValue.key}}</b></summary>
               <ul>

src/service/app-storage.service.ts

@@ -31,7 +31,17 @@ export class AppStorageService {
     const currentWeek: number = moment().isoWeek();
     const appStorage: AppStorage = this.retrieveAppStorage();
     const currentWeekScoreMap: Map<number, WeekScore> = appStorage.weekScoreMap!;
-    const currentWeekScore: WeekScore = currentWeekScoreMap.get(currentWeek)!;
+    let currentWeekScore: WeekScore;
+
+    if(currentWeekScoreMap.has(currentWeek)) {
+      currentWeekScore = currentWeekScoreMap.get(currentWeek)!;
+    } else {
+      currentWeekScore = {
+        score: 0,
+        rightAnswers: 0,
+        wrongAnswers: 0
+      }
+    }
 
     if (correctAnswer) {
       currentWeekScore.rightAnswers += 1;