London | 26-ITP-May | Gideon Defar | Sprint 1 | Object Destructuring

Sprint-1/destructuring/exercise-1/exercise.js

@@ -6,10 +6,10 @@ const personOne = {
 
 // Update the parameter to this function to make it work.
 // Don't change anything else.
-function introduceYourself(___________________________) {
+function introduceYourself({ name, age, favouriteFood }) {
   console.log(
     `Hello, my name is ${name}. I am ${age} years old and my favourite food is ${favouriteFood}.`
   );
 }
 
-introduceYourself(personOne);
+introduceYourself(personOne);

Sprint-1/destructuring/exercise-2/exercise.js

@@ -70,3 +70,31 @@ let hogwarts = [
     occupation: "Teacher",
   },
 ];
+
+// - In `exercise.js` write a program that will take the `hogwarts` array as input and display the names of the people who belong to the Gryffindor house.
+// - Use object destructuring to extract the values you need out of each element in the array.
+
+function findGryffindorMembers(array) {
+  let pplInGryffindor = [];
+
+  for (const character of array) {
+    const { firstName, lastName, house } = character;
+    const fullName = `${firstName} ${lastName}`;
+    if (house === "Gryffindor") {
+      pplInGryffindor.push(fullName);
+    }
+  }
+  return pplInGryffindor;
+}
+
+console.log(findGryffindorMembers(hogwarts));
+
+/** output:
+The function returns an array containing the five Gryffindor members: Harry Potter, Ron Weasley, Hermione Granger, Minerva McGonagall, and Albus Dumbledore.
+[
+'Harry Potter',
+'Ron Weasley',
+'Hermione Granger',
+'Minerva McGonagall',
+'Albus Dumbledore'
+] */

Sprint-1/destructuring/exercise-3/exercise.js

@@ -6,3 +6,36 @@ let order = [
   { itemName: "Hot Coffee", quantity: 2, unitPricePence: 100 },
   { itemName: "Hash Brown", quantity: 4, unitPricePence: 40 },
 ];
+
+function printReceipt(array) {
+  const qty = "QTY";
+  const item = "ITEM";
+  const totals = "TOTAL";
+  console.log(`${qty.padEnd(10, " ")}${item.padEnd(20, " ")}${totals}`);
+
+  let totalPrice = 0;
+
+  for (const { itemName, quantity, unitPricePence } of array) {
+    const paddedQuantity = String(quantity).padEnd(10, " ");
+    const paddedItem = itemName.padEnd(20, " ");
+    let rowTotal = (quantity * unitPricePence) / 100;
+    let rowTotalDisplayed = rowTotal.toFixed(2);
+
+    console.log(`${paddedQuantity}${paddedItem}${rowTotalDisplayed}`);
+
+    totalPrice = totalPrice + rowTotal;
+  }
+  console.log("");
+  console.log(`Total: ${totalPrice.toFixed(2)}`);
+}
+printReceipt(order);
+// Output:
+// QTY     ITEM                TOTAL
+// 1       Hot Cakes           2.32
+// 2       Apple Pie           2.78
+// 1       Egg McMuffin        2.80
+// 1       Sausage McMuffin    3.00
+// 2       Hot Coffee          2.00
+// 4       Hash Brown          1.60
+
+// Total: 14.50