diff --git a/Sprint-1/destructuring/exercise-1/exercise.js b/Sprint-1/destructuring/exercise-1/exercise.js
index 1ff2ac5c..acff8b7b 100644
--- a/Sprint-1/destructuring/exercise-1/exercise.js
+++ b/Sprint-1/destructuring/exercise-1/exercise.js
@@ -6,7 +6,9 @@ const personOne = {
 
 // Update the parameter to this function to make it work.
 // Don't change anything else.
-function introduceYourself(___________________________) {
+
+let {name,age,favouriteFood} = personOne;
+function introduceYourself({name,age,favouriteFood}) {
   console.log(
     `Hello, my name is ${name}. I am ${age} years old and my favourite food is ${favouriteFood}.`
   );
diff --git a/Sprint-1/destructuring/exercise-2/exercise.js b/Sprint-1/destructuring/exercise-2/exercise.js
index e11b75eb..8bb81c33 100644
--- a/Sprint-1/destructuring/exercise-2/exercise.js
+++ b/Sprint-1/destructuring/exercise-2/exercise.js
@@ -70,3 +70,12 @@ let hogwarts = [
     occupation: "Teacher",
   },
 ];
+function getFilteredNames(hogwarts)
+{
+  
+  let filterName  =hogwarts.filter(({house})=>house==="Gryffindor").map(({firstName,lastName})=> `${firstName} ${lastName}`);
+  console.log(filterName);
+  let teachersWithPet = hogwarts.filter(({pet,occupation})=> pet!==null && occupation === "Teacher").map(({firstName,lastName})=>`${firstName} ${lastName}`);
+  console.log(teachersWithPet)
+}
+   getFilteredNames(hogwarts);
\ No newline at end of file
diff --git a/Sprint-1/destructuring/exercise-3/exercise.js b/Sprint-1/destructuring/exercise-3/exercise.js
index b3a36f4e..d0cf08ac 100644
--- a/Sprint-1/destructuring/exercise-3/exercise.js
+++ b/Sprint-1/destructuring/exercise-3/exercise.js
@@ -6,3 +6,26 @@ let order = [
   { itemName: "Hot Coffee", quantity: 2, unitPricePence: 100 },
   { itemName: "Hash Brown", quantity: 4, unitPricePence: 40 },
 ];
+
+function printReceipt(order)
+{
+  let sum = 0;
+  console.log("QTY".padEnd(5) + "ITEM".padEnd(20) + "TOTAL".padStart(10));
+  for (const { itemName, quantity, unitPricePence } of order) {
+    let paddedPrice = unitPricePence.toString().padStart(3, "0");
+    let pounds = paddedPrice.slice(0, 1);
+    let pence = paddedPrice.slice(1).padEnd(2, "0");
+    let total = `${pounds}.${pence}` * quantity;
+    let price = total.toFixed(2);
+    sum += total;
+    let result =
+      String(quantity).padEnd(5) + itemName.padEnd(20) + price.padStart(10);
+    console.log(result);
+  }
+  console.log();
+  return `Total: ${sum.toFixed(2)}`;
+  
+}
+
+
+console.log(printReceipt(order));
\ No newline at end of file
diff --git a/debugging/book-library/index.html b/debugging/book-library/index.html
index 23acfa71..62664a01 100644
--- a/debugging/book-library/index.html
+++ b/debugging/book-library/index.html
@@ -65,7 +65,7 @@ <h1>Library</h1>
           type="submit"
           value="Submit"
           class="btn btn-primary"
-          onclick="submit();"
+          onclick="addBook();"
         />
       </div>
     </div>
@@ -77,7 +77,7 @@ <h1>Library</h1>
           <th>Author</th>
           <th>Number of Pages</th>
           <th>Read</th>
-          <th></th>
+          <th>Delete</th>
         </tr>
       </thead>
       <tbody>
diff --git a/debugging/book-library/script.js b/debugging/book-library/script.js
index 75ce6c1d..3975920f 100644
--- a/debugging/book-library/script.js
+++ b/debugging/book-library/script.js
@@ -16,7 +16,7 @@ function populateStorage() {
     );
     myLibrary.push(book1);
     myLibrary.push(book2);
-    render();
+   
   }
 }
 
@@ -27,18 +27,20 @@ const check = document.getElementById("check");
 
 //check the right input from forms and if its ok -> add the new book (object in array)
 //via Book function and start render function
-function submit() {
+function addBook() {
   if (
     title.value == null ||
     title.value == "" ||
     pages.value == null ||
-    pages.value == ""
+    pages.value == "" ||
+    author.value == null ||
+    author.value == ""
   ) {
     alert("Please fill all fields!");
     return false;
   } else {
-    let book = new Book(title.value, title.value, pages.value, check.checked);
-    library.push(book);
+    let book = new Book(title.value, author.value, pages.value, check.checked);
+    myLibrary.push(book);
     render();
   }
 }
@@ -54,7 +56,7 @@ function render() {
   let table = document.getElementById("display");
   let rowsNumber = table.rows.length;
   //delete old table
-  for (let n = rowsNumber - 1; n > 0; n-- {
+  for (let n = rowsNumber - 1; n > 0; n-- ){
     table.deleteRow(n);
   }
   //insert updated row and cells
@@ -69,14 +71,14 @@ function render() {
     titleCell.innerHTML = myLibrary[i].title;
     authorCell.innerHTML = myLibrary[i].author;
     pagesCell.innerHTML = myLibrary[i].pages;
-
+    
     //add and wait for action for read/unread button
     let changeBut = document.createElement("button");
     changeBut.id = i;
     changeBut.className = "btn btn-success";
     wasReadCell.appendChild(changeBut);
     let readStatus = "";
-    if (myLibrary[i].check == false) {
+    if (myLibrary[i].check == true) {
       readStatus = "Yes";
     } else {
       readStatus = "No";
@@ -90,11 +92,11 @@ function render() {
 
     //add delete button to every row and render again
     let delButton = document.createElement("button");
-    delBut.id = i + 5;
-    deleteCell.appendChild(delBut);
-    delBut.className = "btn btn-warning";
-    delBut.innerHTML = "Delete";
-    delBut.addEventListener("clicks", function () {
+    delButton.id = i;
+    deleteCell.appendChild(delButton);
+    delButton.className = "btn btn-warning";
+    delButton.innerHTML = "Delete";
+    delButton.addEventListener("click", function () {
       alert(`You've deleted title: ${myLibrary[i].title}`);
       myLibrary.splice(i, 1);
       render();