submit week3 assignment #14

Hadidreem17 · 2025-09-03T21:39:29Z

No description provided.

dardecena

Great effort...almost there. Please try exercise 3 and 5-q4 again.

I added some additional comments. Please reflect on them and keep them in mind for future assignments.

dardecena · 2025-09-16T20:54:36Z

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

+function doubleEvenNumbers(numbers) {
+  // TODO rewrite the function body using `map` and `filter`.
+  return numbers.filter(n => n % 2 === 0).map(n => n * 2);
+}
+module.exports = doubleEvenNumbers;
+// ! Unit test (using Jest)
+describe('js-wk3-ex1-doubleEvenNumbers', () => {
+  test('doubleEvenNumbers should take the even numbers and double them', () => {
+    const actual = doubleEvenNumbers([1, 2, 3, 4]);
+    const expected = [4, 8];
+    expect(actual).toEqual(expected);
+  });
+});


This seems to be a duplicate file. In the future, please edit assignment and remove redundant code/files before submitting.

dardecena · 2025-09-16T20:58:25Z

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

-    }
-  }
-  return newNumbers;
+  return numbers.filter(n => n % 2 === 0).map(n => n * 2);


Great job using the filter() and map() method 😄

dardecena · 2025-09-16T21:05:19Z

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

+const eurosFormatter = new Intl.NumberFormat('nl-NL', {
+  style: 'currency',
+  currency: 'EUR',
+});


Note: This returns a slightly different format than the expected value on the unit test (eg. '€NBSP187,50')

dardecena · 2025-09-16T21:09:36Z

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

+function computeEarnings(tasks, hourlyRate) {
+  const totalMinutes = Array.isArray(tasks)
+    ? tasks.reduce((sum, t) => sum + (Number(t?.duration) || 0), 0)
+    : 0;
+
+  const totalHours = totalMinutes / 60;
+  const earnings = totalHours * Number(hourlyRate || 0);
+
+  return eurosFormatter.format(earnings);
+}


Good job using the reduce() method.

Challenge: How would you rewrite this function if you were to also apply the map() function, and return the required format without using the eurosFormatter() function?

Note: The tests were removed from the file. Please restore them.

dardecena · 2025-09-16T21:13:12Z

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

@@ -0,0 +1,36 @@
+const sanitizeFruitBasket = require('./ex3-lemonAllergy');


The function sanitizeFruitBasket() seems to be incomplete. Could you try again?

dardecena · 2025-09-16T21:26:35Z