Alaa Nasher - Week 1 (Add the answer code to the assignment)

.test-summary/TEST_SUMMARY.md

@@ -0,0 +1,15 @@
+## Test Summary
+
+**Mentors**: For more information on how to review homework assignments, please refer to the [Review Guide](https://github.com/HackYourFuture/mentors/blob/main/assignment-support/review-guide.md).
+
+### 1-JavaScript - Week2
+
+|       Exercise       | Passed | Failed | ESLint |
+|----------------------|--------|--------|--------|
+| ex1-giveCompliment   |   7    |   -    |   ✓    |
+| ex2-dogYears         |   7    |   -    |   ✓    |
+| ex3-tellFortune      |   10   |   -    |   ✓    |
+| ex4-shoppingCart     |   -    |   -    |   ✓    |
+| ex5-shoppingCartPure |   -    |   -    |   ✓    |
+| ex6-totalCost        |   -    |   -    |   ✓    |
+| ex7-mindPrivacy      |   -    |   -    |   ✓    |

1-JavaScript/Week2/assignment/ex1-giveCompliment.js

@@ -1,29 +1,22 @@
-/* -----------------------------------------------------------------------------
-Full description at: https://github.com/HackYourFuture/Assignments/tree/main/1-JavaScript/Week3#exercise-1-you-are-amazing
-
-1. Complete the function named `giveCompliment`as follows:
-
-   - It should take a single parameter: `name`.
-   - Its function body should include a variable that holds an array,
-     `compliments`, initialized with 10 strings. Each string should be a
-     compliment, like `"great"`, `"awesome"` and so on.
-   - It should randomly select a compliment from the array.
-   - It should return the string "You are `compliment`, `name`!", where
-     `compliment` is a randomly selected compliment and `name` is the name that
-     was passed as an argument to the function.
-
-2. Call the function three times, giving each function call the same argument:
-   your name.
-   Use `console.log` each time to display the return value of the
-   `giveCompliment` function to the console.
------------------------------------------------------------------------------*/
-export function giveCompliment(/* TODO parameter(s) go here */) {
-  // TODO complete this function
+export function giveCompliment(name) {
+  const compliments = [
+    'kind',
+    'smart',
+    'beautiful',
+    'strong',
+    'brave',
+    'talented',
+    'generous',
+    'helpful',
+    'creative',
+    'friendly',
+  ];
+
+  return `You are ${compliments[Math.floor(Math.random() * compliments.length)]}, ${name}!`;
 }
 
 function main() {
-  // TODO substitute your own name for "HackYourFuture"
-  const myName = 'HackYourFuture';
+  const myName = 'Alaa';
 
   console.log(giveCompliment(myName));
   console.log(giveCompliment(myName));
@@ -36,7 +29,6 @@ function main() {
   console.log(giveCompliment(yourName));
 }
 
-// ! Do not change or remove the code below
 if (process.env.NODE_ENV !== 'test') {
   main();
 }

1-JavaScript/Week2/assignment/ex2-dogYears.js

@@ -1,31 +1,13 @@
-/*------------------------------------------------------------------------------
-Full description at: https://github.com/HackYourFuture/Assignment/tree/main/1-JavaScript/Week3#exercise-2-dog-years
-
-You know how old your dog is in human years, but what about dog years? Let's
-calculate it!
-
-1. Complete the function named `calculateDogAge`.
-
-  - It takes one parameter: your (fictional) puppy's age (number).
-  - Calculate your dog's age based on the conversion rate of 1 human year to
-    7 dog years.
-  - Return a string: "Your doggie is `age` years old in dog years!"
-
-2. Use `console.log` to display the result of the function for three different
-   ages.
------------------------------------------------------------------------------*/
-
-export function calculateDogAge(/* TODO parameter(s) go here */) {
-  // TODO complete this function
+export function calculateDogAge(age) {
+  return `Your doggie is ${age * 7} years old in dog years!`;
 }
 
 function main() {
-  console.log(calculateDogAge(1)); // -> "Your doggie is 7 years old in dog years!"
-  console.log(calculateDogAge(2)); // -> "Your doggie is 14 years old in dog years!"
-  console.log(calculateDogAge(3)); // -> "Your doggie is 21 years old in dog years!"
+  console.log(calculateDogAge(1));
+  console.log(calculateDogAge(2));
+  console.log(calculateDogAge(3));
 }
 
-// ! Do not change or remove the code below
 if (process.env.NODE_ENV !== 'test') {
   main();
 }

1-JavaScript/Week2/assignment/ex3-tellFortune.js

@@ -1,68 +1,30 @@
-/*------------------------------------------------------------------------------
-Full description at: https://github.com/HackYourFuture/Assignments/tree/main/1-JavaScript/Week3#exercise-3-be-your-own-fortune-teller
-
-Why pay a fortune teller when you can just program your fortune yourself?
-
-1. Create four arrays, `numKids`, `partnerNames`, `locations` and `jobTitles`. 
-   Give each array five random values that have to do with the name of 
-   the variable.
-
-2. Complete the function `selectRandomly`. This function should take an array 
-   as a parameter and return a randomly selected element as its return value.
-
-3. Complete the function named `tellFortune` as follows:
-
-   - It should take four arguments (in the order listed): 
-     * the array with the options for the number of children, 
-     * the array with the options for the partner's name, 
-     * the array with the options for the geographic location and 
-     * the array with the options for the job title.
-   - It should use the `selectRandomly` function to randomly select values from 
-     the arrays.
-   - It should return a string: "You will be a `jobTitle` in `location`, 
-    married to `partnerName` with `numKids` kids."
-
-4. Call the function three times, passing the arrays as arguments. Use `
-   console.log` to display the results.
-
-Note: The DRY principle is put into practice here: instead of repeating the code to 
-randomly select array elements four times inside the `tellFortune` function 
-body, this code is now written once only in a separated function.
------------------------------------------------------------------------------*/
-
-// This function should take an array as its parameter and return
-// a randomly selected element as its return value.
-function selectRandomly(/* TODO parameter(s) go here */) {
-  // TODO complete this function
+function selectRandomly(choices) {
+  return choices[Math.floor(Math.random() * choices.length)];
 }
 
-export function tellFortune(/* TODO add parameter(s) here */) {
-  // TODO complete this function
+export function tellFortune(childrenArr, partnersArr, locationsArr, jobsArr) {
+  const numKids = selectRandomly(childrenArr);
+  const partnerName = selectRandomly(partnersArr);
+  const location = selectRandomly(locationsArr);
+  const jobTitle = selectRandomly(jobsArr);
+
+  return `You will be a ${jobTitle} in ${location}, married to ${partnerName} with ${numKids} kids.`;
 }
 
 function main() {
-  const numKids = [
-    // TODO add elements here
-  ];
+  const numKids = [2, 4, 1, 7, 5];
 
-  const partnerNames = [
-    // TODO add elements here
-  ];
+  const partnerNames = ['Yusuf', 'Leen', 'Sarah', 'Eliana', 'Amal'];
 
-  const locations = [
-    // TODO add elements here
-  ];
+  const locations = ['Amsterdam', 'Breda', 'Tilburg', 'Utrecht', 'Rotterdam'];
 
-  const jobTitles = [
-    // TODO add elements here
-  ];
+  const jobTitles = ['Programmer', 'Teacher', 'Soldier', 'Manager', 'Musician'];
 
   console.log(tellFortune(numKids, partnerNames, locations, jobTitles));
   console.log(tellFortune(numKids, partnerNames, locations, jobTitles));
   console.log(tellFortune(numKids, partnerNames, locations, jobTitles));
 }
 
-// ! Do not change or remove the code below
 if (process.env.NODE_ENV !== 'test') {
   main();
 }

1-JavaScript/Week2/assignment/ex4-shoppingCart.js

@@ -1,29 +1,14 @@
-/*------------------------------------------------------------------------------
-Full description at: https://github.com/HackYourFuture/Assignments/tree/main/1-JavaScript/Week3#exercise-4-shopping-at-the-supermarket
-
-Let's do some grocery shopping! We're going to get some things to cook dinner
-with. However, you like to spend money and always buy too many things. So when 
-you have more than 3 items in your shopping cart the first item gets taken out.
-
-1. Complete the function named `addToShoppingCart` as follows:
-
-   - It should take one argument: a grocery item (string)
-   - It should add the grocery item to the `shoppingCart` array. If the number of items is
-     more than three remove the first one in the array.
-   - It should return a string "You bought <list-of-items>!", where 
-     <list-of-items>is a comma-separated list of items from the shopping cart 
-     array.
-
-2. Confirm that your code passes the unit tests.
------------------------------------------------------------------------------*/
 const shoppingCart = ['bananas', 'milk'];
 
-// ! Function to be tested
-function addToShoppingCart(/* parameters go here */) {
-  // TODO complete this function
+function addToShoppingCart(item) {
+  shoppingCart.push(item);
+  if (shoppingCart.length > 3) {
+    shoppingCart.shift();
+  }
+  const shoppingCartItems = shoppingCart.join(', ');
+  return `You bought ${shoppingCartItems}!`;
 }
 
-// ! Test functions (plain vanilla JavaScript)
 function test1() {
   console.log(
     'Test 1: addShoppingCart() called without an argument should leave the shopping cart unchanged'

1-JavaScript/Week2/assignment/ex5-shoppingCartPure.js

@@ -1,34 +1,19 @@
-/*------------------------------------------------------------------------------
-Full description at: https://github.com/HackYourFuture/Assignments/tree/main/1-JavaScript/Week3#exercise-5-improved-shopping-at-the-supermarket
-
-In the current exercise we will rewrite the `addToShoppingCart` function to make 
-it pure. Do the following:
-
-1. Complete the parameter list of `addToShopping()`. As a first parameter it 
-   should accept a shopping cart array and as a second parameter it should 
-   accept a grocery item to be added.
-2. The function should return a new shopping cart array, following the same rule 
-   as in the previous exercise: it should contain a maximum of three items.
-3. The shopping cart passed as an argument should not be mutated.
-4. When constructing the new shopping cart array you should make use of the ES6 
-   spread syntax.
-5. Confirm that you function passes the provided unit tests.
-------------------------------------------------------------------------------*/
-// ! Function under test
-function addToShoppingCart(/* TODO parameter(s) go here */) {
-  // TODO complete this function
+function addToShoppingCart([...shoppingCart], item) {
+  shoppingCart.push(item);
+  if (shoppingCart.length > 3) {
+    shoppingCart.shift();
+  }
+  const shoppingCartItems = shoppingCart.join(', ');
+  return `You bought ${shoppingCartItems}!`;
 }
 
-// ! Test functions (plain vanilla JavaScript)
 function test1() {
   console.log('Test 1: addToShoppingCart should take two parameters');
   console.assert(addToShoppingCart.length === 2);
 }
 
 function test2() {
   console.log('Test 2: addToShoppingCart should be a pure function');
-  // A pure function should return the same result when called with
-  // identical arguments. It should also have no side effects (not tested here).
   const initialCart = ['bananas', 'milk'];
   const result1 = addToShoppingCart(initialCart, 'chocolate');
   const result2 = addToShoppingCart(initialCart, 'chocolate');

1-JavaScript/Week2/assignment/ex6-totalCost.js

@@ -1,41 +1,32 @@
-/*------------------------------------------------------------------------------
-Full description at: https://github.com/HackYourFuture/Assignments/tree/main/1-JavaScript/Week3#exercise-6-total-cost-is
-
-You want to buy a couple of things from the supermarket to prepare for a party.
-After scanning all the items the cashier wants to give you the total price, but
-the machine is broken! Let's write her a function that does it for her
-instead!
-
-1. Create an object named `cartForParty` with five properties. Each property
-   should be a grocery item (like `beers` or `chips`) and hold a number value
-   (like `1.75` or `0.99`).
-
-2. Complete the function called `calculateTotalPrice`.
-
-   - It takes one parameter: an object that contains properties that only contain
-     number values.
-   - Loop through the object and add all the number values together.
-   - Return a string: "Total: €`amount`".
-
-3. Complete the unit test functions and verify that all is working as expected.
------------------------------------------------------------------------------*/
 const cartForParty = {
-  // TODO complete this object
+  chips: 1.75,
+  juice: 2.4,
+  frenchfries: 4.99,
+  cake: 8.99,
+  choclate: 2.99,
 };
 
-function calculateTotalPrice(/* TODO parameter(s) go here */) {
-  // TODO replace this comment with your code
+function calculateTotalPrice(obj) {
+  // let sum = 0;
+  // for (const [_, value] of Object.entries(obj)) {
+  //   sum += value;
+  // }
+
+  // return Number(sum.toFixed(2));
+  const total = Object.values(obj).reduce((total, item) => total + item);
+  return Number(total.toFixed(2));
 }
 
-// ! Test functions (plain vanilla JavaScript)
 function test1() {
   console.log('\nTest 1: calculateTotalPrice should take one parameter');
-  // TODO replace this comment with your code
+  console.assert(calculateTotalPrice.length === 1);
 }
 
 function test2() {
   console.log('\nTest 2: return correct output when passed cartForParty');
-  // TODO replace this comment with your code
+  const expected = 21.12;
+  const actual = calculateTotalPrice(cartForParty);
+  console.assert(actual === expected);
 }
 
 function test() {

1-JavaScript/Week2/assignment/ex7-mindPrivacy.js

@@ -1,16 +1,3 @@
-/*------------------------------------------------------------------------------
-Full description at: https://github.com/HackYourFuture/Assignments/tree/main/1-JavaScript/Week3#exercise-7-mind-the-privacy
-
-1. Complete the `filterPrivateData()` function. It should take a single 
-   parameter: the array of employee records.
-2. It should create a _new_ array, containing employee data without the private
-   data.
-3. Use object destructuring to extract the non-private properties from an 
-   employee record (an `object`) and object literal shorthand to create a new 
-   employee record with just the non-private parts (name, occupation and email).
-4. Return the new array as the return value of the function.
-5. Run the exercise and verify that it passes all the unit tests.
-------------------------------------------------------------------------------*/
 const employeeRecords = [
   {
     name: 'John',
@@ -28,12 +15,17 @@ const employeeRecords = [
   },
 ];
 
-// ! Function under test
-function filterPrivateData(/* TODO parameter(s) go here */) {
-  // TODO complete this function
+function filterPrivateData(employeesRecord) {
+  // const nonPrivateData = [];
+  // for (let { name, occupation, email } of employeesRecord) {
+  //   nonPrivateData.push({ name, occupation, email });
+  // }
+  const nonPrivateData = employeesRecord.map(({ name, occupation, email }) => {
+    return { name, occupation, email };
+  });
+  return nonPrivateData;
 }
 
-// ! Test functions (plain vanilla JavaScript)
 function test1() {
   console.log('Test 1: filterPrivateData should take one parameter');
   console.assert(filterPrivateData.length === 1);

1-JavaScript/Week2/test-reports/ex1-giveCompliment.report.txt

@@ -0,0 +1,23 @@
+*** Unit Test Error Report ***
+
+ PASS  .dist/1-JavaScript/Week2/unit-tests/ex1-giveCompliment.test.js
+  js-wk2-ex1-giveCompliment
+    ✅ should exist and be executable (2 ms)
+    ✅ should have all TODO comments removed (1 ms)
+    ✅ `giveCompliment` should not contain unneeded console.log calls (1 ms)
+    ✅ should take a single parameter
+    ✅ should include a `compliments` array inside its function body
+    ✅ the `compliments` array should be initialized with 10 strings
+    ✅ should give a random compliment: You are `compliment`, `name`!
+
+Test Suites: 1 passed, 1 total
+Tests:       7 passed, 7 total
+Snapshots:   0 total
+Time:        0.522 s, estimated 1 s
+Ran all test suites matching /\/Users\/Alaa\/Desktop\/JavaScript-Cohort54\/.dist\/1-JavaScript\/Week2\/unit-tests\/ex1-giveCompliment.test.js/i.
+No linting errors detected.
+
+
+*** Spell Checker Report ***
+
+1-JavaScript/Week2/assignment/ex1-giveCompliment.js:19:19 - Unknown word (Alaa)