am-igdtuw · Aayushi-Sinha · Aug 15, 2023 · Aug 26, 2023
diff --git a/counter.js b/counter.js
@@ -0,0 +1,18 @@
+<html>
+<head>
+    <title>Space Clicker</title>
+</head>
+
+<body>
+    <script type="text/javascript">
+    var clicks = 0;
+    function onClick() {
+            clicks += 1 ;
+            document.getElementById("clicks").innerHTML = clicks;
+} ;
+</script>
+<button type="button" onClick="onClick()">Click me</button>
+<p>Clicks: <a id="clicks">0</a></p>
+
+</body>
+</html>
diff --git a/library.js b/library.js
@@ -0,0 +1,103 @@
+const library = [
+    {
+        title: "The Great Gatsby",
+        author: "F. Scott Fitzgerald",
+        year: 1925,
+        pages: 180,
+    },
+    {
+        title: "To Kill a Mockingbird",
+        author: "Harper Lee",
+        year: 1960,
+        pages: 281,
+    },
+    {
+        title: "1984",
+        author: "George Orwell",
+        year: 1949,
+        pages: 328,
+    },
+    {
+        title: "Pride and Prejudice",
+        author: "Jane Austen",
+        year: 1813,
+        pages: 432,
+    }
+];
+
+// Calculate and return the total number of pages in the library
+function getTotalPages() {
+    const totalPages = library.reduce((total, book) => total + book.pages, 0);
+    return totalPages;
+}
+
+// Return an array containing only the titles of the books in the library
+function getBookTitles() {
+    const bookTitles = library.map(book => book.title);
+    return bookTitles;
+}
+
+// Return an array containing the titles of books published after the given year
+function getBooksPublishedAfterYear(year) {
+    const booksAfterYear = library.filter(book => book.year > year).map(book => book.title);
+    return booksAfterYear;
+}
+
+// Calculate and return the average number of pages across all books in the library
+function getAveragePages() {
+    const totalBooks = library.length;
+    const totalPages = getTotalPages();
+    const averagePages = totalPages / totalBooks;
+    return averagePages;
+}
+
+// Return the title of the book with the most pages
+function getLongestBook() {
+    const longestBook = library.reduce((maxBook, book) => (book.pages > maxBook.pages ? book : maxBook));
+    return longestBook.title;
+}
+
+// Return an object with author names as keys and arrays of book titles as values
+function getAuthorsAndBooks() {
+    const authorsAndBooks = library.reduce((result, book) => {
+        if (!result[book.author]) {
+            result[book.author] = [];
+        }
+        result[book.author].push(book.title);
+        return result;
+    }, {});
+    return authorsAndBooks;
+}
+
+// Return an object with author names as keys and total number of pages as values
+function getTotalPagesByAuthor() {
+    const totalPagesByAuthor = library.reduce((result, book) => {
+        if (!result[book.author]) {
+            result[book.author] = 0;
+        }
+        result[book.author] += book.pages;
+        return result;
+    }, {});
+    return totalPagesByAuthor;
+}
+
+// Return an object with author names as keys and titles of the shortest book as values
+function getShortestBookByAuthor() {
+    const shortestBookByAuthor = library.reduce((result, book) => {
+        if (!result[book.author] || book.pages < library.find(b => b.title === result[book.author]).pages) {
+            result[book.author] = book.title;
+        }
+        return result;
+    }, {});
+    return shortestBookByAuthor;
+}
+
+// Example usage:
+console.log("Total Pages:", getTotalPages());
+console.log("Book Titles:", getBookTitles());
+console.log("Books Published After 1950:", getBooksPublishedAfterYear(1950));
+console.log("Average Pages:", getAveragePages());
+console.log("Longest Book:", getLongestBook());
+console.log("Authors and Their Books:", getAuthorsAndBooks());
+console.log("Total Pages by Author:", getTotalPagesByAuthor());
+console.log("Shortest Book by Author:", getShortestBookByAuthor());