diff --git a/TypeScript/app/gilded-rose.ts b/TypeScript/app/gilded-rose.ts
index 76602293..6845fbfa 100644
--- a/TypeScript/app/gilded-rose.ts
+++ b/TypeScript/app/gilded-rose.ts
@@ -20,51 +20,47 @@ export class GildedRose {
   }
 
   updateQuality() {
-    for (let i = 0; i < this.items.length; i++) {
-      if (
-        this.items[i].name != ITEMS.BRIE &&
-        this.items[i].name != ITEMS.PASSES
-      ) {
-        if (this.items[i].quality > 0) {
-          if (this.items[i].name != ITEMS.SURFRAS) {
-            this.items[i].quality = this.items[i].quality - 1;
+    for (const item of this.items) {
+      if (item.name != ITEMS.BRIE && item.name != ITEMS.PASSES) {
+        if (item.quality > 0) {
+          if (item.name != ITEMS.SURFRAS) {
+            item.quality = item.quality - 1;
           }
         }
       } else {
-        if (this.items[i].quality < 50) {
-          this.items[i].quality = this.items[i].quality + 1;
-          if (this.items[i].name == ITEMS.PASSES) {
-            if (this.items[i].sellIn < 11) {
-              if (this.items[i].quality < 50) {
-                this.items[i].quality = this.items[i].quality + 1;
+        if (item.quality < 50) {
+          item.quality = item.quality + 1;
+          if (item.name == ITEMS.PASSES) {
+            if (item.sellIn < 11) {
+              if (item.quality < 50) {
+                item.quality = item.quality + 1;
               }
             }
-            if (this.items[i].sellIn < 6) {
-              if (this.items[i].quality < 50) {
-                this.items[i].quality = this.items[i].quality + 1;
+            if (item.sellIn < 6) {
+              if (item.quality < 50) {
+                item.quality = item.quality + 1;
               }
             }
           }
         }
       }
-      if (this.items[i].name != ITEMS.SURFRAS) {
-        this.items[i].sellIn = this.items[i].sellIn - 1;
+      if (item.name != ITEMS.SURFRAS) {
+        item.sellIn = item.sellIn - 1;
       }
-      if (this.items[i].sellIn < 0) {
-        if (this.items[i].name != ITEMS.BRIE) {
-          if (this.items[i].name != ITEMS.PASSES) {
-            if (this.items[i].quality > 0) {
-              if (this.items[i].name != ITEMS.SURFRAS) {
-                this.items[i].quality = this.items[i].quality - 1;
+      if (item.sellIn < 0) {
+        if (item.name != ITEMS.BRIE) {
+          if (item.name != ITEMS.PASSES) {
+            if (item.quality > 0) {
+              if (item.name != ITEMS.SURFRAS) {
+                item.quality = item.quality - 1;
               }
             }
           } else {
-            this.items[i].quality =
-              this.items[i].quality - this.items[i].quality;
+            item.quality = item.quality - item.quality;
           }
         } else {
-          if (this.items[i].quality < 50) {
-            this.items[i].quality = this.items[i].quality + 1;
+          if (item.quality < 50) {
+            item.quality = item.quality + 1;
           }
         }
       }