[O] Optimize in-between dates storing

src/pages/overall/overall-line/overall-line.ts

@@ -142,21 +142,21 @@ export default class OverallLine extends Vue
 
         // Find the dates in between
         let now = new Date(Math.min(new Date().getTime(), CourseUtils.getTermEndDate().getTime()));
-        let dates: number[] = [];
+        let times: number[] = [];
         for (let date = minDate; date <= now; date.setDate(date.getDate() + 1))
         {
-            dates.push(new Date(date).getTime());
+            times.push(date.getTime());
         }
 
         let lastValue: any = null;
-        return dates.map(date =>
+        return times.map(time =>
         {
             // Data point on this specific date
-            let thisValue = data.find(a => a[0] == date);
+            let thisValue = data.find(a => a[0] == time);
 
             // None
-            if (thisValue == null) return [date, lastValue == null ? null : lastValue[1]];
-            else return [date, (lastValue = thisValue)[1]];
+            if (thisValue == null) return [time, lastValue == null ? null : lastValue[1]];
+            else return [time, (lastValue = thisValue)[1]];
         });
     }
 }