07_js-debug/uebungen/u01_bibverwaltung/index.html

@@ -27,8 +27,8 @@
 
       const isLibraryUpdating = false;
       const isUserLoggedIn = true;
-      const hasLibrarianPermissions = true;
-      const hasBookEditCapability = false;
+      const hasLibrarianPermissions = false;
+      const hasBookEditCapability = true;
       const hasBookAccess = false;
 
       const bookCollection = [

07_js-debug/uebungen/u01_bibverwaltung/solution.html

@@ -0,0 +1,84 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.8/dist/css/bootstrap.css" />
+    <title>Exercise: Nested If-Statements</title>
+  </head>
+  <body>
+    <main>
+      <div class="container py-5">
+        <h1>Exercise: Nested If-Statements</h1>
+        <hr />
+        <div class="alert alert-primary">
+          <h2>Übung 1: Bibliotheksverwaltung</h2>
+          <p>
+            In dieser Übung besteht deine Aufgabe darin, die verschachtelten if-Anweisungen mit Hilfe der Inversion zu
+            vereinfachen. In der nächsten Übung, in der du auch die Extraktion verwendest, wird deine Lösung verwendet.
+            Verwende für diese Übung also nur die Inversion.
+          </p>
+        </div>
+      </div>
+    </main>
+
+    <script>
+      'use strict';
+
+      let isLibraryUpdating = false;
+      let isUserLoggedIn = true;
+      let hasLibrarianPermissions = false;
+      let hasBookEditCapability = true;
+      let hasBookAccess = false;
+
+      const bookCollection = [
+        {
+          title: 'Book A',
+          price: 150,
+          quantity: 5,
+        },
+        {
+          title: 'Book B',
+          price: 250,
+          quantity: 0,
+        },
+        {
+          title: 'Book C',
+          price: 350,
+          quantity: 10,
+        },
+      ];
+
+      function handleLibraryOperations() {
+        if (isLibraryUpdating) {
+          console.log('Library system is currently updating.');
+          return;
+        }
+        if (!isUserLoggedIn) {
+          console.log('Please log in to manage books.');
+          return;
+        }
+        if (!(hasLibrarianPermissions || (hasBookEditCapability && hasBookAccess))) {
+          console.log('Insufficient rights to manage books.');
+          return;
+        }
+
+        bookCollection.forEach((book) => {
+          console.log(`Book Title: ${book.title}`);
+          if (book.price > 200) {
+            console.log('Book price is greater than 200.');
+          } else {
+            console.log('Book price is less than or equal to 200.');
+          }
+          if (book.quantity > 0) {
+            console.log('Book is available.');
+          } else {
+            console.log('Book is unavailable.');
+          }
+          console.log('---');
+        });
+      }
+      handleLibraryOperations();
+    </script>
+  </body>
+</html>