Rewrite "array destructuring" exercises as object destructuring (#47)

These exercises do not actually benefit from array destructuring, so are
quite confusing as-is.

But they are great examples of object destructuring. Let's call them
that.

Also move them to a Sprint directiry, like all of the other modules are
laid out.

Author: illicitonion

…ray-destructuring/exercise-1/exercise.js …t-1/destructuring/exercise-1/exercise.jsfetch/array-destructuring/exercise-1/exercise.js renamed to Sprint-1/destructuring/exercise-1/exercise.js fetch/array-destructuring/exercise-1/exercise.js renamed to Sprint-1/destructuring/exercise-1/exercise.js

@@ -4,6 +4,8 @@ const personOne = {
   favouriteFood: "Spinach",
 };
 
+// Update the parameter to this function to make it work.
+// Don't change anything else.
 function introduceYourself(___________________________) {
   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

@@ -0,0 +1,33 @@
+We can use object destructuring to extract values from an object and assign them to variables in one line.
+
+```js
+let person = {
+  firstName: "Bruce",
+  lastName: "Wayne",
+};
+
+let { firstName, lastName } = person;
+
+console.log(`Batman is ${firstName}, ${lastName}`);
+```
+
+The program above will print `Batman is Bruce Wayne`.
+
+This is more concise than doing this without object destructuring:
+
+```js
+let person = {
+  firstName: "Bruce",
+  lastName: "Wayne",
+};
+
+let firstName = person.firstName;
+let lastName = person.lastName;
+
+console.log(`Batman is ${firstName}, ${lastName}`);
+```
+
+# Exercise
+
+- 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.

…ray-destructuring/exercise-2/exercise.js …t-1/destructuring/exercise-2/exercise.jsfetch/array-destructuring/exercise-2/exercise.js renamed to Sprint-1/destructuring/exercise-2/exercise.js fetch/array-destructuring/exercise-2/exercise.js renamed to Sprint-1/destructuring/exercise-2/exercise.js

@@ -1,8 +1,7 @@
 # Exercise 2
 
-_Need some help? Refresh your memory with [this article](https://www.freecodecamp.org/news/array-destructuring-in-es6-30e398f21d10/)_
-
 In `exercise.js`, you have an array that contains a list of people who are at Hogwarts School of Witchcraft and Wizardry.
+
 For each character you have the following information:
 
 - First Name
@@ -14,7 +13,7 @@ For each character you have the following information:
 ## 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 array destructuring to extract the values you need out of the array.
+- Use object destructuring to extract the values you need out of each element in the array.
 
 ### Expected result
 
@@ -29,7 +28,7 @@ Albus Dumbledore
 ## 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 array destructuring to extract the values you need out of the array.
+- Use object destructuring to extract the values you need out of each element in the array.
 
 ### Expected result
 

…array-destructuring/exercise-2/readme.md …int-1/destructuring/exercise-2/readme.mdfetch/array-destructuring/exercise-2/readme.md renamed to Sprint-1/destructuring/exercise-2/readme.md fetch/array-destructuring/exercise-2/readme.md renamed to Sprint-1/destructuring/exercise-2/readme.md

@@ -0,0 +1,8 @@
+let order = [
+  { itemName: "Hot cakes", quantity: 1, unitPricePence: 232 },
+  { itemName: "Apple Pie", quantity: 2, unitPricePence: 139 },
+  { itemName: "Egg McMuffin", quantity: 1, unitPricePence: 280 },
+  { itemName: "Sausage McMuffin", quantity: 1, unitPricePence: 300 },
+  { itemName: "Hot Coffee", quantity: 2, unitPricePence: 100 },
+  { itemName: "Hash Brown", quantity: 4, unitPricePence: 40 },
+];

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

@@ -1,21 +1,21 @@
 # Exercise
 
-_Need some help? Refresh your memory with [this article](https://www.freecodecamp.org/news/array-destructuring-in-es6-30e398f21d10/)_
-
 - In `exercise.js`, you have been provided with a takeout order. Write a program that will print out the receipt for this order.
 - Log each individual item to the console.
 - Log the total cost of the order to the console.
+- Use object destructuring to access the values you need from each item.
+- Pay attention to the exact formatting of the expected result.
 
 ## Expected result
 
 ```
 QTY     ITEM                TOTAL
-1       Hot Cakes           2.29
+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: 14.47
+Total: 14.50
 ```