diff --git a/TypeScript/app/a/Assignment.md b/TypeScript/app/a/Assignment.md
index 8c90831..886d461 100644
--- a/TypeScript/app/a/Assignment.md
+++ b/TypeScript/app/a/Assignment.md
@@ -31,3 +31,5 @@ our online shop. The main logic is in `Discount`.
 * Bring `Discount` under test. Make sure to cover all paths in the core logic.
 * There is an existing `DiscountTest` with a first test case which might or might not work.
 * You cannot change `MarketingCampaign` because it is used by other teams as well.
+
+(This is a copied document - do not edit!)
diff --git a/TypeScript/app/a/discount.ts b/TypeScript/app/a/discount.ts
index 80ed077..514dfc0 100644
--- a/TypeScript/app/a/discount.ts
+++ b/TypeScript/app/a/discount.ts
@@ -1,9 +1,9 @@
-import {Money} from "./money";
-import {MarketingCampaign} from "./marketing-campaign";
+import { Money } from "./money";
+import { MarketingCampaign } from "./marketing-campaign";
 
 export class Discount {
 
-    marketingCampaign: MarketingCampaign;
+    private marketingCampaign: MarketingCampaign;
 
     constructor() {
         this.marketingCampaign = new MarketingCampaign();
diff --git a/TypeScript/app/a/marketing-campaign.ts b/TypeScript/app/a/marketing-campaign.ts
index 226160e..3e0c0a6 100644
--- a/TypeScript/app/a/marketing-campaign.ts
+++ b/TypeScript/app/a/marketing-campaign.ts
@@ -1,13 +1,11 @@
 export class MarketingCampaign {
 
     public isActive(): boolean {
-        let now: Date = new Date();
-        return now.getMilliseconds() % 2 == 0;
+        return new Date().getMilliseconds() % 2 == 0;
     }
 
     public isCrazySalesDay(): boolean {
-        let now: Date = new Date();
-        return now.getDay() === 5;
+        return new Date().getDay() === 5; // Friday corresponds to day number 5
     }
 
 }
diff --git a/TypeScript/app/a/money.ts b/TypeScript/app/a/money.ts
index 673be77..cf0fea4 100644
--- a/TypeScript/app/a/money.ts
+++ b/TypeScript/app/a/money.ts
@@ -14,7 +14,6 @@ export class Money {
     }
 
     reduceBy(p: number): Money {
-        // value.multiply(new BigDecimal(100 - p)).divide(new BigDecimal(100))
         return new Money((this.value * (100 - p) / 100).toFixed(2));
     }
 
diff --git a/TypeScript/test/a/discount.test.ts b/TypeScript/test/a/discount.test.ts
index fccc4b7..ba85d57 100644
--- a/TypeScript/test/a/discount.test.ts
+++ b/TypeScript/test/a/discount.test.ts
@@ -1,16 +1,16 @@
-import {Discount} from "../../app/a/discount";
-import {Money} from "../../app/a/money";
-import {expect} from "chai";
+import { Discount } from "../../app/a/discount";
+import { Money } from "../../app/a/money";
+import { expect } from "chai";
 
-describe('Discount Test', () => {
+describe('Discount', () => {
 
-    it('test in a', () => {
-        let discount = new Discount();
+    it('test 1', () => {
+        const discount = new Discount();
 
-        let net = new Money(1002);
-        let total = discount.discountFor(net);
+        const net = new Money(1002);
+        const total = discount.discountFor(net);
 
         expect(total.value).to.be.equal(901.8);
     });
 
-});
\ No newline at end of file
+});