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solved the task #11

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47 changes: 35 additions & 12 deletions arrays-basics.js
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Original file line number Diff line number Diff line change
Expand Up @@ -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);
136 changes: 87 additions & 49 deletions arrays-intermediate.js
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Original file line number Diff line number Diff line change
Expand Up @@ -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:
Expand All @@ -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:
Expand All @@ -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) => {
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@AlhassanAli01 AlhassanAli01 Feb 22, 2024 •
edited
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Instead of using map in this function, you could've used foreach, because you're not aiming to create a new array, you're just checking if the present is there and changing the value of the presentIncluded inside the loop.

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:
Expand All @@ -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:
Expand All @@ -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:
Expand All @@ -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:
Expand All @@ -128,7 +156,7 @@ Task 7:
];
const updatedGrades = updateGrades(students, 10);
console.log(updatedGrades);

Output:
[
{
Expand All @@ -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" },
])
);
18 changes: 9 additions & 9 deletions index.html
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Original file line number Diff line number Diff line change
@@ -1,12 +1,12 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Arrays</title>
</head>
<body>
<script src="./arrays.js" type="module" />
</body>
</html>
</head>
<body>
<script src="./reviewers.js" type="module"></script>
</body>
</html>
28 changes: 21 additions & 7 deletions reviewers.js
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Original file line number Diff line number Diff line change
@@ -1,21 +1,23 @@
const reviewers = require("./reviewers.json");
import reviewers from "./reviewers.json" assert {type: 'json'};
console.log("🚀 ~ file: reviewers.js:2 ~ reviewers:", reviewers);

/***********************************************************************
- This function receives a reviewer object and should return the name of the reviewer.
***********************************************************************/
function getReviewerName(reviewer) {
//TODO: ADD YOUR CODE HERE
return reviewer.reviewerName;
}
// console.log(getReviewerName(reviewers[0]));
console.log(getReviewerName(reviewers[0]));

/***********************************************************************
- Receives a reviewer object and returns the number of reviews that reviewer has done.
************************************************************************/
function numberOfReviews(reviewer) {
//TODO: ADD YOUR CODE HERE
return reviewer.books.length;
}
// console.log(numberOfReviews(reviewers[0]));
console.log(numberOfReviews(reviewers[0]));

/***********************************************************************
- Receives a review title (string) and a reviewer object,
Expand All @@ -25,8 +27,11 @@ function numberOfReviews(reviewer) {
***********************************************************************/
function reviewerHasReview(reviewTitle, reviewer) {
//TODO: ADD YOUR CODE HERE
return reviewer.books.some((book) => {
return book.title.toLowerCase() === reviewTitle.toLowerCase();
});
}
// console.log(reviewerHasReview("Becoming", reviewers[0]));
console.log(reviewerHasReview("Becoming", reviewers[0]));

/**************************************************************
- Receives a reviewer name (string) and an array of reviewer objects,
Expand All @@ -35,8 +40,11 @@ function reviewerHasReview(reviewTitle, reviewer) {
****************************************************************/
function getReviewerByName(reviewerName, reviewers) {
//TODO: ADD YOUR CODE HERE
return reviewers.find(reviewer => {
return reviewer.reviewerName.toLowerCase() === reviewerName.toLowerCase();
});
}
// console.log(getReviewerByName("Michelle Obama", reviewers));
console.log(getReviewerByName("Michelle Obama", reviewers));

/**************************************************************
- Receives a review title (string) and an array of reviewer objects,
Expand All @@ -45,8 +53,11 @@ function getReviewerByName(reviewerName, reviewers) {
****************************************************************/
function getReviewerByReviewTitle(reviewTitle, reviewers) {
//TODO: ADD YOUR CODE HERE
return reviewers.find(reviewer => {
return reviewer.books.some(book => { return book.title.toLowerCase() == reviewTitle.toLowerCase() });
});
}
// console.log(getReviewerByReviewTitle("The Overstory", reviewers));
console.log(getReviewerByReviewTitle("The Overstory", reviewers));

/**************************************************************
- Receives a query (string) and an array of reviewer objects,
Expand All @@ -55,5 +66,8 @@ function getReviewerByReviewTitle(reviewTitle, reviewers) {
****************************************************************/
function searchReviewers(query, reviewers) {
//TODO: ADD YOUR CODE HERE
return reviewers.filter(reviewer => {
return reviewer.reviewerName.includes(query) || reviewer.description.includes(query);
})
}
// console.log(searchReviewers("o", reviewers));
console.log(searchReviewers("o", reviewers));