Oleksandr Starshynov week3 JavaScript

.test-summary/TEST_SUMMARY.md

@@ -0,0 +1,13 @@
+## 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 - Week3
+
+|          Exercise          | Passed | Failed | ESLint |
+|----------------------------|--------|--------|--------|
+| ex1-doubleEvenNumbers.test |   1    |   -    |   ✓    |
+| ex2-mondaysWorth.test      |   2    |   -    |   ✓    |
+| ex3-lemonAllergy.test      |   3    |   -    |   ✓    |
+| ex4-observable             |   3    |   -    |   ✓    |
+| ex5-wallet                 |   5    |   -    |   ✓    |

1-JavaScript/Week3/assignment/ex1-doubleEvenNumbers.test.js

@@ -1,25 +1,9 @@
-/*------------------------------------------------------------------------------
-Full description at: https://github.com/HackYourFuture/Assignments/tree/main/1-JavaScript/Week4#exercise-1-the-odd-ones-out
-
-The `doubleEvenNumbers` function returns only the even numbers in the array 
-passed as the `numbers` parameter and doubles them.
-
-Let's rewrite it (or _refactor_ it, as experienced developers would call it):
-
-- Using the `map` and `filter` functions, rewrite the function body of
-`doubleEvenNumbers`.
-------------------------------------------------------------------------------*/
 // ! Function to be tested
 function doubleEvenNumbers(numbers) {
-  // TODO rewrite the function body using `map` and `filter`.
-  const newNumbers = [];
-  for (let i = 0; i < numbers.length; i++) {
-    if (numbers[i] % 2 === 0) {
-      newNumbers.push(numbers[i] * 2);
-    }
+  const evenNumbers = numbers.filter(num => num % 2 === 0);
+  const doubledNumbers = evenNumbers.map(num => num * 2);
+  return doubledNumbers;
   }
-  return newNumbers;
-}
 
 // ! Unit test (using Jest)
 describe('js-wk3-ex1-doubleEvenNumbers', () => {

1-JavaScript/Week3/assignment/ex2-mondaysWorth.test.js

@@ -30,10 +30,15 @@ const mondayTasks = [
 
 const hourlyRate = 25;
 
-function computeEarnings(/* TODO parameter(s) go here */) {
-  // TODO complete this function
+function computeEarnings(tasks, hourlyRate) {
+  const totalEarnings = tasks
+    .map(task => task.duration / 60 * hourlyRate) 
+    .reduce((sum, earnings) => sum + earnings, 0); 
+  return `€${totalEarnings.toFixed(2)}`; 
 }
 
+console.log(computeEarnings(mondayTasks, hourlyRate)); 
+
 // ! Unit tests (using Jest)
 describe('js-wk3-mondaysWorth', () => {
   test('computeEarnings should take two parameters', () => {

1-JavaScript/Week3/assignment/ex3-lemonAllergy.test.js

@@ -1,19 +1,3 @@
-/*------------------------------------------------------------------------------
-Full description at: https://github.com/HackYourFuture/Assignments/tree/main/1-JavaScript/Week4#exercise-3-lemon-allergy
-
-Your mom bought you a basket of fruit, because you're doing so well in
-HackYourFuture. How sweet of her!
-
-However, she forgot that you are allergic to lemons! Let's quickly dispose of
-them before you get an attack.
-
-Complete the function called `sanitizeFruitBasket`:
-
-- It should take two parameters: an array of strings representing a fruit basket 
-  to be sanitized and a string indicating the name of the fruit to be taken out.
-- Use the `filter` array method to take out the unwanted fruit.
-- Return a new array that contains the fruits without any lemons.
-------------------------------------------------------------------------------*/
 const fruitBasket = [
   'apple',
   'lemon',
@@ -25,26 +9,24 @@ const fruitBasket = [
 ];
 
 // ! Function under test
-function sanitizeFruitBasket(/* TODO parameter(s) go here */) {
-  // TODO complete this function
+function sanitizeFruitBasket(basket, fruitAllergy) {
+  const newBasket = basket.filter((item) => item !== fruitAllergy);
+  return newBasket;
 }
 
 // ! Unit tests (using Jest)
 describe('js-wk3-ex3-lemonAllergy', () => {
   test('sanitizeFruitBasket should take two parameters', () => {
-    // TODO replace next line with your code
-    expect(false).toBe(true);
+    expect(sanitizeFruitBasket.length).toBe(2);
   });
 
   test('sanitizeFruitBasket should not modify the original `fruitBasket` array', () => {
-    // Save the original contents of the fruit basket
     const originalFruitBasketContents = [...fruitBasket];
-    // TODO replace next line with your code
-    expect(false).toBe(true);
+    expect(originalFruitBasketContents.length).toBe(fruitBasket.length);
   });
 
   test('sanitizeFruitBasket should return a new array that does not include the unwanted `lemon`', () => {
-    // TODO replace next line with your code
-    expect(false).toBe(true);
+    const allergyArray = sanitizeFruitBasket(fruitBasket, 'lemon');
+    expect(allergyArray).not.toContain('lemon');
   });
-});
+});

1-JavaScript/Week3/assignment/ex4-observable/ex4-observable.js

@@ -16,10 +16,12 @@ export function createObservable() {
   const subscribers = [];
   return {
     subscribe(subscriber) {
-      // TODO complete this function
+        subscribers.push(subscriber);
     },
     notify(message) {
-      // TODO complete this function
+      subscribers.forEach(subscriber => {
+        subscriber(message);
+      });
     },
   };
-}
+}

1-JavaScript/Week3/assignment/ex5-wallet/index.js

@@ -23,7 +23,7 @@ function createWallet(name, cash = 0) {
   function transferInto(wallet, amount) {
     console.log(
       `Transferring ${eurosFormatter.format(amount)} from ${name} to ${
-        wallet.name
+        wallet.getName()
       }`
     );
     const withdrawnAmount = withdraw(amount);
@@ -75,7 +75,7 @@ const quiz = {
       b: 'cash, name', 
       c: 'amount, this, wallet'
     },
-    answer: '?',
+    answer: 'b',
   },
   q2: {
     question: 'What is in the Call Stack, from top to bottom?',
@@ -84,7 +84,7 @@ const quiz = {
       b: 'anonymous, transferInto', 
       c: 'transferInto, anonymous' 
     },
-    answer: '?',
+    answer: 'c',
   },
   q3: {
     question: 'What tooltip appears when hovering over the third debug button?',
@@ -93,7 +93,7 @@ const quiz = {
       b: 'Step out of current function', 
       c: 'Step' 
     },
-    answer: '?',
+    answer: 'a',
   },
   q4: {
     question: 'What is displayed in the console?',
@@ -102,7 +102,7 @@ const quiz = {
       b: 'Transferring € 50,00 from Jack to undefined', 
       c: 'Transferring € 50,00 from Jack to Jane' 
     },
-    answer: '?',
+    answer: 'a',
   },
   q5: {
     question: 'The owner of the wallet with insufficient funds is:',
@@ -111,6 +111,6 @@ const quiz = {
       b: 'Joe', 
       c: 'Jane' 
     },
-    answer: '?',
+    answer: 'c',
   },
 };

1-JavaScript/Week3/test-reports/ex1-doubleEvenNumbers.test.report.txt

@@ -0,0 +1,13 @@
+*** Unit Test Error Report ***
+
+ PASS  1-JavaScript/Week3/assignment/ex1-doubleEvenNumbers.test.js
+  js-wk3-ex1-doubleEvenNumbers
+    ✅ doubleEvenNumbers should take the even numbers and double them (3 ms)
+
+Test Suites: 1 passed, 1 total
+Tests:       1 passed, 1 total
+Snapshots:   0 total
+Time:        0.945 s, estimated 1 s
+Ran all test suites matching /D:\\HYF\\HYF-Assignments-cohort52\\1-JavaScript\\Week3\\assignment\\ex1-doubleEvenNumbers.test.js/i.
+No linting errors detected.
+No spelling errors detected.

1-JavaScript/Week3/test-reports/ex2-mondaysWorth.test.report.txt

@@ -0,0 +1,19 @@
+*** Unit Test Error Report ***
+
+console.log
+    €187.50
+
+      at Object.log (1-JavaScript/Week3/assignment/ex2-mondaysWorth.test.js:40:9)
+
+ PASS  1-JavaScript/Week3/assignment/ex2-mondaysWorth.test.js
+  js-wk3-mondaysWorth
+    ✅ computeEarnings should take two parameters (3 ms)
+    ✅ computeEarnings should compute the earnings as a formatted Euro amount (1 ms)
+
+Test Suites: 1 passed, 1 total
+Tests:       2 passed, 2 total
+Snapshots:   0 total
+Time:        0.768 s, estimated 1 s
+Ran all test suites matching /D:\\HYF\\HYF-Assignments-cohort52\\1-JavaScript\\Week3\\assignment\\ex2-mondaysWorth.test.js/i.
+No linting errors detected.
+No spelling errors detected.

1-JavaScript/Week3/test-reports/ex3-lemonAllergy.test.report.txt

@@ -0,0 +1,15 @@
+*** Unit Test Error Report ***
+
+ PASS  1-JavaScript/Week3/assignment/ex3-lemonAllergy.test.js
+  js-wk3-ex3-lemonAllergy
+    ✅ sanitizeFruitBasket should take two parameters (3 ms)
+    ✅ sanitizeFruitBasket should not modify the original `fruitBasket` array
+    ✅ sanitizeFruitBasket should return a new array that does not include the unwanted `lemon` (1 ms)
+
+Test Suites: 1 passed, 1 total
+Tests:       3 passed, 3 total
+Snapshots:   0 total
+Time:        1.307 s
+Ran all test suites matching /D:\\HYF\\HYF-Assignments-cohort52\\1-JavaScript\\Week3\\assignment\\ex3-lemonAllergy.test.js/i.
+No linting errors detected.
+No spelling errors detected.

1-JavaScript/Week3/test-reports/ex4-observable.report.txt

@@ -0,0 +1,15 @@
+*** Unit Test Error Report ***
+
+ PASS  1-JavaScript/Week3/assignment/ex4-observable/ex4-observable.test.js
+  js-wk3-ex4-observable
+    ✅ createObservable should exist and be a function (7 ms)
+    ✅ createObservable should return an object with `subscribe` and a `notify` function properties (1 ms)
+    ✅ observable should notify all subscribers of any notification (2 ms)
+
+Test Suites: 1 passed, 1 total
+Tests:       3 passed, 3 total
+Snapshots:   0 total
+Time:        0.866 s, estimated 1 s
+Ran all test suites matching /D:\\HYF\\HYF-Assignments-cohort52\\1-JavaScript\\Week3\\assignment\\ex4-observable\\ex4-observable.test.js/i.
+No linting errors detected.
+No spelling errors detected.

1-JavaScript/Week3/test-reports/ex5-wallet.report.txt

@@ -0,0 +1,17 @@
+*** Unit Test Error Report ***
+
+ PASS  .dist/1-JavaScript/Week3/unit-tests/ex5-wallet.test.js
+  js-wk3-ex5-wallet
+    ✅ q1: At line 24, which variables are in the scope marked Closure? (2 ms)
+    ✅ q2: What is in the Call Stack, from top to bottom? (1 ms)
+    ✅ q3: What tooltip appears when hovering over the third debug button?
+    ✅ q4: What is displayed in the console? (1 ms)
+    ✅ q5: The owner of the wallet with insufficient funds is?
+
+Test Suites: 1 passed, 1 total
+Tests:       5 passed, 5 total
+Snapshots:   0 total
+Time:        0.717 s, estimated 1 s
+Ran all test suites matching /D:\\HYF\\HYF-Assignments-cohort52\\.dist\\1-JavaScript\\Week3\\unit-tests\\ex5-wallet.test.js/i.
+No linting errors detected.
+No spelling errors detected.