London | 25-ITP-Sep | Imran Mohamed | Sprint 1 | Feature/destructuring

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

@@ -6,7 +6,7 @@ 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}.`
   );

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?
+```js
+let {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 +70,29 @@ let hogwarts = [
     occupation: "Teacher",
   },
 ];
+
+//task 1
+function getGryffindorMembers(arr) {
+  let gryffindorMembers = [];
+  arr.forEach(({ firstName, lastName, house }) => {
+    if (house === "Gryffindor") {
+      gryffindorMembers.push(`${firstName} ${lastName}`);
+    }
+  });
+  console.log(gryffindorMembers.join('\n'));
+}
+
+getGryffindorMembers(hogwarts);
+
+//task 2
+function getTeachersWithPets(arr) {
+  let teachersWithPets = [];
+  arr.forEach(({ firstName, lastName, occupation, pet }) => {
+    if (occupation === "Teacher" && pet) {
+      teachersWithPets.push(`${firstName} ${lastName}`);
+    }
+  });
+  console.log(teachersWithPets.join('\n'));
+}
+
+getTeachersWithPets(hogwarts);

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

@@ -6,3 +6,22 @@ let order = [
   { itemName: "Hot Coffee", quantity: 2, unitPricePence: 100 },
   { itemName: "Hash Brown", quantity: 4, unitPricePence: 40 },
 ];
+
+function printReceipt(order){
+  let total = 0 , qtyWidthMax = 3, itemWidthMax = 4
+  const receiptLines = order.map(({itemName, quantity, unitPricePence}) => {
+    const itemTotalPounds = (quantity*unitPricePence/100);
+    qtyWidthMax = Math.max(qtyWidthMax, String(quantity).length);
+    itemWidthMax = Math.max(itemWidthMax, itemName.length);
+    return { itemName, quantity, itemTotalPounds };
+  })
+  console.log('QTY'.padEnd(qtyWidthMax+4), 'ITEM'.padEnd(itemWidthMax+3), 'TOTAL');
+  receiptLines.forEach(({itemName, quantity, itemTotalPounds}) => {
+    total += itemTotalPounds;
+    console.log(String(quantity).padEnd(qtyWidthMax+4), itemName.padEnd(itemWidthMax+3), `${itemTotalPounds.toFixed(2)}`);
+  })
+  console.log(`\nTotal: ${total.toFixed(2)}`);
+
+}
+
+printReceipt(order);