diff --git a/arrays-basics.js b/arrays-basics.js
index 0de468d..d810dd7 100644
--- a/arrays-basics.js
+++ b/arrays-basics.js
@@ -2,46 +2,69 @@
Task 8 (logArray):
Create a function logArray that receives an array as a parameter and logs each item in the array.
**************************************************************/
-function logArray(arr) {}
+function logArray(arr) {
+ arr.forEach((item) => {
+ console.log(item);
+ });
+}
-// logArray([1, 2, 3, 4, 5]);
+logArray([1, 2, 3, 4, 5]);
/**************************************************************
Task 9 (logArrayWithIndex):
Create a function logArrayWithIndex that receives an array as a parameter and logs each item in the array along with its index.
**************************************************************/
-function logArrayWithIndex(arr) {}
+function logArrayWithIndex(arr) {
+ arr.forEach((item, index) => {
+ console.log(index + " " + item);
+ });
+}
-// logArrayWithIndex(["apple", "banana", "orange"]);
+logArrayWithIndex(["apple", "banana", "orange"]);
/**************************************************************
Task 10 (logEvenNumbers):
Create a function logEvenNumbers that receives an array of numbers as a parameter and logs only the even numbers in the array.
**************************************************************/
-function logEvenNumbers(arr) {}
+function logEvenNumbers(arr) {
+ console.log(arr.filter((item) => item % 2 === 0));
-// logEvenNumbers([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]);
+}
+
+logEvenNumbers([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]);
/**************************************************************
Task 11 (logArrayBackwards):
Create a function logArrayBackwards that receives an array as a parameter and logs each item in the array in reverse order.
**************************************************************/
-function logArrayBackwards(arr) {}
+function logArrayBackwards(arr) {
+ arr.reverse().forEach(item => console.log(item));
+}
-// logArrayBackwards(["one", "two", "three", "four"]);
+logArrayBackwards(["one", "two", "three", "four"]);
/**************************************************************
Task 12 (logLastItem):
Create a function logLastItem that receives an array as a parameter and logs the last item in the array.
**************************************************************/
-function logLastItem(arr) {}
+function logLastItem(arr) {
+ return arr[arr.length - 1];
+}
-// logLastItem(["a", "b", "c", "d"]);
+console.log(logLastItem(["a", "b", "c", "d"]));
/**************************************************************
Task 13 (logArrayInChunks):
Create a function logArrayInChunks that receives an array and a chunk size as parameters and logs the items in the array in chunks of the specified size.
**************************************************************/
-function logArrayInChunks(arr, chunkSize) {}
+function logArrayInChunks(arr, chunkSize) {
+ var newArr = [];
+
+ for (var i = 0; i < arr.length; i += chunkSize) {
+ newArr.push(arr.slice(i, i + chunkSize));
+ }
+
+ console.log(newArr);
+}
-// logArrayInChunks([1, 2, 3, 4, 5, 6, 7, 8, 9], 3);
+logArrayInChunks([1, 2, 3, 4, 5, 6, 7, 8, 9], 3);
diff --git a/arrays-intermediate.js b/arrays-intermediate.js
index 18b8fb0..8ad6dbe 100644
--- a/arrays-intermediate.js
+++ b/arrays-intermediate.js
@@ -5,8 +5,11 @@
**************************************************************/
function sumArray(numbers) {
//TODO: Add your code here
+
+ let sum = numbers.reduce((sum, number) => sum + number, 0);
+ return sum;
}
-// console.log(sumArray([4, 3, 2, 5, -10]));
+console.log(sumArray([4, 3, 2, 5, -10]));
/**************************************************************
Task 2:
@@ -17,10 +20,13 @@ function sumArray(numbers) {
**************************************************************/
function findFirstStringStartingWithLetter(letter, strings) {
//TODO: Add your code here
+ return strings.find((string) => {
+ return string.toLowerCase().startsWith(letter.toLowerCase())
+ });
}
-// console.log(
-// findFirstStringStartingWithLetter("h", ["Memory", "Hello", "Happy"])
-// );
+console.log(
+ findFirstStringStartingWithLetter("h", ["Memory", "Hello", "Happy"])
+);
/**************************************************************
Task 3:
@@ -31,16 +37,24 @@ function findFirstStringStartingWithLetter(letter, strings) {
**************************************************************/
function isPresentIncluded(presentName, presents) {
//TODO: Add your code here
+ let presentIncluded = false
+ let arr = presents.map((present) => {
+ if (present.toLowerCase().includes(presentName)) {
+ presentIncluded = true;
+ return presentIncluded;
+ }
+ });
+ return presentIncluded;
}
-// console.log(
-// isPresentIncluded("puzzle", [
-// "Sparkling Surprise",
-// "Enchanted Elegance",
-// "Whimsical Wonder",
-// "Joyful Jingle",
-// "Puzzle",
-// ])
-// );
+console.log(
+ isPresentIncluded("puzzle", [
+ "Sparkling Surprise",
+ "Enchanted Elegance",
+ "Whimsical Wonder",
+ "Joyful Jingle",
+ "Puzzle",
+ ])
+);
/**************************************************************
Task 4:
@@ -51,21 +65,22 @@ function isPresentIncluded(presentName, presents) {
**************************************************************/
function sortStudentsAlphabetically(students) {
//TODO: Add your code here
+ return students.sort();
}
-// console.log(
-// sortStudentsAlphabetically([
-// "Eve",
-// "Jasmia",
-// "Husnia",
-// "Grace",
-// "Bob",
-// "Charlie",
-// "Alice",
-// "Dave",
-// "Um abbas",
-// "Frank",
-// ])
-// );
+console.log(
+ sortStudentsAlphabetically([
+ "Eve",
+ "Jasmia",
+ "Husnia",
+ "Grace",
+ "Bob",
+ "Charlie",
+ "Alice",
+ "Dave",
+ "Um abbas",
+ "Frank",
+ ])
+);
/**************************************************************
Task 5:
@@ -79,8 +94,18 @@ function sortStudentsAlphabetically(students) {
**************************************************************/
function separateOddEven(numbers) {
//TODO: Add your code here
+ const evens = [];
+ const odds = [];
+ numbers.forEach((number) => {
+ if (number % 2 == 0) {
+ evens.push(number);
+ } else {
+ odds.push(number);
+ }
+ });
+ return evens + " and " + odds;
}
-// console.log(separateOddEven([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]));
+console.log(separateOddEven([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]));
/**************************************************************
Task 6:
@@ -96,20 +121,23 @@ function separateOddEven(numbers) {
const updatedItems = removeItem('#153', items);
console.log(updatedItems); // Output: [{ code: "#147", name: "Scissors" }, { code: "#249", name: "Pillow" }, { code: "#149", name: "Tissue" },];
-
+
Hint: Use the .filter and .startsWith method
**************************************************************/
function removeItem(code, items) {
//TODO: Add your code here
+ return items.filter((item) => {
+ return !item.code.startsWith(code);
+ });
}
-// console.log(
-// removeItem("#153", [
-// { code: "#153", name: "Ball" },
-// { code: "#147", name: "Scissors" },
-// { code: "#249", name: "Pillow" },
-// { code: "#149", name: "Tissue" },
-// ])
-// );
+console.log(
+ removeItem("#153", [
+ { code: "#153", name: "Ball" },
+ { code: "#147", name: "Scissors" },
+ { code: "#249", name: "Pillow" },
+ { code: "#149", name: "Tissue" },
+ ])
+);
/**************************************************************
Task 7:
@@ -128,7 +156,7 @@ Task 7:
];
const updatedGrades = updateGrades(students, 10);
console.log(updatedGrades);
-
+
Output:
[
{
@@ -153,19 +181,29 @@ Task 7:
{ firstName: "Um Abbas", lastName: "Winston", grade: 10, type: "nerd" },
{ firstName: "Johny", lastName: "Micle", grade: 20, type: "regular" },
];
-
+
Hint: Use the .map method and separator operator
**************************************************************/
function updateGrades(curve, students) {
//TODO: Add your code here
+ let updatedStudents = [...students];
+ updatedStudents = updatedStudents.map((student) => {
+ if (student.type.toLowerCase() === "nerd") {
+ student.grade -= curve;
+ } else {
+ student.grade += curve;
+ }
+ return student;
+ });
+ return updatedStudents;
}
-// console.log(
-// updateGrades(10, [
-// { firstName: "Jaber", lastName: "jabarbar", grade: 10, type: "regular" },
-// { firstName: "Hamza", lastName: "Alhamazi", grade: 12, type: "regular" },
-// { firstName: "Jasem", lastName: "Jamasmas", grade: 15, type: "nerd" },
-// { firstName: "Kadhim", lastName: "Khadhmia", grade: 5, type: "regular" },
-// { firstName: "Um Abbas", lastName: "IDK", grade: 20, type: "nerd" },
-// { firstName: "Johny", lastName: "Micle", grade: 10, type: "regular" },
-// ])
-// );
+console.log(
+ updateGrades(10, [
+ { firstName: "Jaber", lastName: "jabarbar", grade: 10, type: "regular" },
+ { firstName: "Hamza", lastName: "Alhamazi", grade: 12, type: "regular" },
+ { firstName: "Jasem", lastName: "Jamasmas", grade: 15, type: "nerd" },
+ { firstName: "Kadhim", lastName: "Khadhmia", grade: 5, type: "regular" },
+ { firstName: "Um Abbas", lastName: "IDK", grade: 20, type: "nerd" },
+ { firstName: "Johny", lastName: "Micle", grade: 10, type: "regular" },
+ ])
+);
diff --git a/index.html b/index.html
index d971aeb..56c9d17 100644
--- a/index.html
+++ b/index.html
@@ -1,12 +1,12 @@
-
-
-
-
+
+
+
+
Arrays
-
-
-
-
-
\ No newline at end of file
+
+
+
+
+