Correct mistakes

.vscode/launch.json

@@ -19,6 +19,46 @@
       "target": "m323",
       "configuration": "release",
       "preLaunchTask": "swift: Build Release m323"
+    },
+    {
+      "type": "swift",
+      "request": "launch",
+      "args": [],
+      "cwd": "${workspaceFolder:m323}",
+      "name": "Debug WeDontLikeCharA",
+      "target": "WeDontLikeCharA",
+      "configuration": "debug",
+      "preLaunchTask": "swift: Build Debug WeDontLikeCharA"
+    },
+    {
+      "type": "swift",
+      "request": "launch",
+      "args": [],
+      "cwd": "${workspaceFolder:m323}",
+      "name": "Release WeDontLikeCharA",
+      "target": "WeDontLikeCharA",
+      "configuration": "release",
+      "preLaunchTask": "swift: Build Release WeDontLikeCharA"
+    },
+    {
+      "type": "swift",
+      "request": "launch",
+      "args": [],
+      "cwd": "${workspaceFolder:m323}",
+      "name": "Debug Aufgabe3",
+      "target": "Aufgabe3",
+      "configuration": "debug",
+      "preLaunchTask": "swift: Build Debug Aufgabe3"
+    },
+    {
+      "type": "swift",
+      "request": "launch",
+      "args": [],
+      "cwd": "${workspaceFolder:m323}",
+      "name": "Release Aufgabe3",
+      "target": "Aufgabe3",
+      "configuration": "release",
+      "preLaunchTask": "swift: Build Release Aufgabe3"
     }
   ]
 }

03/Aufgabe3.swift

@@ -29,7 +29,8 @@ print(calculateAverage(items: items))
 // 3.3
 
 func sortListAlphabetical(items: [String]) -> [String] {
-    return items.sorted()
+    let itemsCopy = items
+    return itemsCopy.sorted()
 }
 
 let stringItems = ["ABC", "CDF", "BDC"]
@@ -45,7 +46,9 @@ struct ComplexType {
 }
 
 func sortComplexType(items: [ComplexType]) -> [ComplexType] {
-    return items.sorted {
+    let itemsCopy = items
+
+    return itemsCopy.sorted {
         ($0.date, $0.priority, $0.title) < ($1.date, $1.priority, $1.title)
     }
 }

03/PureOrNotPure.md

@@ -4,9 +4,9 @@
 | ------- | -------------------- | ------------------------------------------------ | ----------------------------------- | ---------------- |
 | 1.1     | Ja                   | Nein                                             | Nein                                | impure           |
 | 1.2     | Ja                   | Ja                                               | Ja                                  | pure             |
-| 1.3     | Ja                   | ja                                               | Ja                                  | pure             |
+| 1.3     | Ja                   | ja                                               | Ja                                  | impure           |
 | 1.4     | Ja                   | Nein                                             | Ja                                  | impure           |
-| 1.5     | Ja                   | Ja                                               | Ja                                  | pure             |
+| 1.5     | Ja                   | Ja                                               | Ja                                  | impure           |
 | 1.6     | Ja                   | Ja                                               | Nein                                | impure           |
 
 ## Aufgabe 1.1
@@ -40,7 +40,11 @@ console.log(add(2, 4)); // Ausgabe: 6
 
 ```js
 function firstCharacter(str) {
-  return str.charAt(0);
+  if (!len(str) > 0) {
+    return str.charAt(0);
+  } else {
+    return "";
+  }
 }
 
 console.log(firstCharacter("Hello")); // Ausgabe: H
@@ -64,7 +68,11 @@ console.log(multiplyWithRandom(10, Math.random())); // Ausgabe: Eine zufällige
 ```js
 // Funktion zum Teilen einer Zahl durch eine andere
 function divideNumbers(dividend, divisor) {
-  return dividend / divisor;
+  if (dividen != 0 && divisor != 0) {
+    return dividend / divisor;
+  } else {
+    return 0;
+  }
 }
 
 console.log(divideNumbers(10, 2)); // Ausgabe: 5

Package.swift

@@ -11,6 +11,16 @@ let package = Package(
         .executableTarget(
             name: "m323"
         ),
+        .executableTarget(
+            name: "WeDontLikeCharA",
+            path: "02",
+            sources: ["WeDontLikeCharA.swift"]
+        ),
+        .executableTarget(
+            name: "Aufgabe3",
+            path: "03",
+            sources: ["Aufgabe3.swift"]
+        ),
         .testTarget(
             name: "m323Tests",
             dependencies: ["m323"]

Tests/m323Tests/m323Tests.swift

@@ -0,0 +1,6 @@
+import Testing
+@testable import m323
+
+@Test func example() async throws {
+    // Write your test here and use APIs like `#expect(...)` to check expected conditions.
+}