London | 26-ITP-Sep | Mandip Sanger| Sprint 1 | Object destructuring

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

@@ -6,10 +6,12 @@ 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);
+// What is the syntax to destructure the object `personOne` in exercise.js?
+//- Update the parameter of the function `introduceYourself` to use destructuring on the object that gets passed in.

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

@@ -70,3 +70,25 @@ let hogwarts = [
     occupation: "Teacher",
   },
 ];
+//## Task 1
+
+//- 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.
+
+// Task 1
+for (const { firstName, house } of hogwarts) {
+  if (house === "Gryffindor") {
+    console.log(firstName);
+  }
+}
+
+// Task 2
+for (const { firstName, occupation, pet } of hogwarts) {
+  if (occupation === "Teacher" && pet) {
+    console.log(firstName);
+  }
+}
+//## Task 2
+
+//- In `exercise.js` write a program that will take the `hogwarts` array as input and display the names of teachers who have pets.
+//- Use object destructuring to extract the values you need out of each element in the array.

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

@@ -6,3 +6,16 @@ let order = [
   { itemName: "Hot Coffee", quantity: 2, unitPricePence: 100 },
   { itemName: "Hash Brown", quantity: 4, unitPricePence: 40 },
 ];
+let totalCost = 0;
+
+for (const { itemName, quantity, unitPricePence } of order) {
+  const itemTotal = quantity * unitPricePence;
+
+  console.log(
+    `${quantity}       ${itemName.padEnd(20)}${(itemTotal / 100).toFixed(2)}`
+  );
+
+  totalCost += itemTotal;
+}
+
+console.log(`Total: ${(totalCost / 100).toFixed(2)}`);