Birmingham | ITP-Jan | Roman Sanaye | Sprint 1 | Feature Destructuring

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

@@ -3,10 +3,11 @@ const personOne = {
   age: 34,
   favouriteFood: "Spinach",
 };
+const { name, age, favouriteFood } = 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}.`
   );

Sprint-1/destructuring/exercise-1/readme.md

@@ -30,4 +30,7 @@ console.log(`Batman is ${firstName}, ${lastName}`);
 # Exercise
 
 - What is the syntax to destructure the object `personOne` in exercise.js?
+
+  -----> the syntax is: let/const {name, age, favouriteFood} = personOne;
+
 - 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 +70,28 @@ let hogwarts = [
     occupation: "Teacher",
   },
 ];
+// write your function here; Use Destructuring !!!!
+
+// Its much easier with destructuring. (first exercise)
+function residentsOfGryffindor(hogwarts) {
+  let result = [];
+  for (let { firstName, lastName, house } of hogwarts) {
+    if (house === "Gryffindor") {
+      result.push(`${firstName} ${lastName}`);
+    }
+  }
+  return result.join("\n");
+}
+
+// second exercise;
+function teacherWithPet(hogwarts) {
+  let result2 = [];
+  for (let { firstName, lastName, pet, occupation } of hogwarts) {
+    if (pet !== null && occupation === "Teacher") {
+      result2.push(`${firstName} ${lastName}`);
+    }
+  }
+  return result2.join("\n");
+}
+console.log(residentsOfGryffindor(hogwarts));
+console.log(teacherWithPet(hogwarts));

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

@@ -6,3 +6,21 @@ let order = [
   { itemName: "Hot Coffee", quantity: 2, unitPricePence: 100 },
   { itemName: "Hash Brown", quantity: 4, unitPricePence: 40 },
 ];
+// write your function here:
+function orderReceipt(order) {
+  let total = 0;
+
+  console.log(`${"QTY".padEnd(8)}${"ITEM".padEnd(25)}TOTAL`);
+
+  for (let { itemName, quantity, unitPricePence } of order) {
+    let itemTotal = (unitPricePence * quantity) / 100;
+    total += itemTotal;
+
+    console.log(
+      `${String(quantity).padEnd(8)}${itemName.padEnd(25)}${itemTotal.toFixed(2)}`
+    );
+  }
+
+  console.log(`\nTotal: ${total.toFixed(2)}`);
+}
+orderReceipt(order);