2026-08-18 14:27:34 +02:00
parent c7d26e1cd9
commit c6d9611e81
35 changed files with 1852 additions and 130 deletions
--- a/06_js-debug/uebungen/u02_extraction/solution.html
+++ b/06_js-debug/uebungen/u02_extraction/solution.html
@@ -0,0 +1,86 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Exercise: Extracted Library Operations</title>
+  </head>
+  <body>
+    <h1>Exercise: Extracted Library Operations</h1>
+
+    <script>
+      'use strict';
+
+      const isLibraryUpdating = false;
+      const isUserLoggedIn = true;
+      const hasLibrarianPermissions = true;
+      const hasBookEditCapability = false;
+      const 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 hasManagePermissions() {
+        return hasLibrarianPermissions || (hasBookEditCapability && hasBookAccess);
+      }
+
+      function printBookDetails(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('---');
+      }
+
+      function processBookCollection(books) {
+        books.forEach(printBookDetails);
+      }
+
+      function handleLibraryOperations() {
+        if (isLibraryUpdating) {
+          console.log('Library system is currently updating.');
+          return;
+        }
+
+        if (!isUserLoggedIn) {
+          console.log('Please log in to manage books.');
+          return;
+        }
+
+        if (!hasManagePermissions()) {
+          console.log('Insufficient rights to manage books.');
+          return;
+        }
+
+        processBookCollection(bookCollection);
+      }
+
+      handleLibraryOperations();
+    </script>
+  </body>
+</html>