diff --git a/arrays-basics.js b/arrays-basics.js
index 0de468d..ce9062d 100644
--- a/arrays-basics.js
+++ b/arrays-basics.js
@@ -2,46 +2,64 @@
  Task 8 (logArray): 
    Create a function logArray that receives an array as a parameter and logs each item in the array.
 **************************************************************/
-function logArray(arr) {}
-
-// logArray([1, 2, 3, 4, 5]);
+function logArray(arr) {
+arr.forEach((value,index)=> console.log (value));
+}
+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((value,index)=>{console.log(value,index)})
+}
 
-// 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) {}
-
-// logEvenNumbers([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]);
+function logEvenNumbers(arr) {
+  for(let i=0;i<arr.length; i++){
+    if(arr[i]%2 ==0){
+      console.log(arr[i] )
+    }
+  }
+}
+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) {
+ console.log(arr.reverse())
+}
 
-// 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) {
+  console.log(arr[arr.length - 1])
+}
 
-// logLastItem(["a", "b", "c", "d"]);
+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) {
+  for (let i = 0; i < arr.length; i += chunkSize) {
+    const chunk = arr.slice(i, i + chunkSize);
+    console.log(chunk)
+
+}
+}
 
-// 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..f69787f 100644
--- a/arrays-intermediate.js
+++ b/arrays-intermediate.js
@@ -3,9 +3,12 @@
    Create a function sumArray that receives an array of numbers as a parameter and returns the sum of all the numbers in the array.
    Hint: Use the .reduce() method
 **************************************************************/
-function sumArray(numbers) {
-  //TODO: Add your code here
-}
+// function sumArray(numbers) {
+// const sum= numbers.reduce((accumulator, currentValue)=>{
+//   return accumulator+currentValue;
+// })
+// return sum
+// }
 // console.log(sumArray([4, 3, 2, 5, -10]));
 
 /**************************************************************
@@ -15,11 +18,13 @@ function sumArray(numbers) {
   
   Hint: Use the .find() and .startsWith() methods
 **************************************************************/
-function findFirstStringStartingWithLetter(letter, strings) {
-  //TODO: Add your code here
-}
+// function findFirstStringStartingWithLetter(letter, strings) {
+//   var result = strings.find((value,index) => {
+//      return value.startsWith(letter);})
+//      return result
+// }
 // console.log(
-//   findFirstStringStartingWithLetter("h", ["Memory", "Hello", "Happy"])
+//   findFirstStringStartingWithLetter("H", ["Memory", "Hello", "Happy"])
 // );
 
 /**************************************************************
@@ -29,11 +34,11 @@ function findFirstStringStartingWithLetter(letter, strings) {
   
   Hint: Use the .map() and .includes() methods
 **************************************************************/
-function isPresentIncluded(presentName, presents) {
-  //TODO: Add your code here
-}
+// function isPresentIncluded(presentName, presents) {
+// return presents.includes(presentName)
+// }
 // console.log(
-//   isPresentIncluded("puzzle", [
+//   isPresentIncluded("blabla", [
 //     "Sparkling Surprise",
 //     "Enchanted Elegance",
 //     "Whimsical Wonder",
@@ -49,9 +54,10 @@ function isPresentIncluded(presentName, presents) {
 
   Hint: Use the .sort() method
 **************************************************************/
-function sortStudentsAlphabetically(students) {
-  //TODO: Add your code here
-}
+// function sortStudentsAlphabetically(students) {
+//   const sortedlist =students.sort()
+//   return sortedlist
+// }
 // console.log(
 //   sortStudentsAlphabetically([
 //     "Eve",
@@ -77,9 +83,20 @@ function sortStudentsAlphabetically(students) {
 
    Hint: Use the .forEach() and .push() methods
 **************************************************************/
-function separateOddEven(numbers) {
-  //TODO: Add your code here
-}
+// function separateOddEven(numbers) {
+//   let odds =[]
+//   let evens =[]
+//   numbers.forEach((value,index) => {
+//     if (value%2 ==0){
+//       evens.push(value)
+//     }else {
+//       odds.push(value)
+//     }
+
+//   });
+//   return {odds , evens} 
+  
+// }
 // console.log(separateOddEven([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]));
 
 /**************************************************************
@@ -99,9 +116,12 @@ function separateOddEven(numbers) {
 
   Hint: Use the .filter and .startsWith method
 **************************************************************/
-function removeItem(code, items) {
-  //TODO: Add your code here
-}
+// function removeItem(code, items) {
+//   const itemsAfterRemove = items.filter((value,index)=>{
+//     return value.code != code;
+//   })
+//   console.log(itemsAfterRemove)
+// }
 // console.log(
 //   removeItem("#153", [
 //     { code: "#153", name: "Ball" },
@@ -157,15 +177,23 @@ Task 7:
    Hint: Use the .map method and separator operator
 **************************************************************/
 function updateGrades(curve, students) {
-  //TODO: Add your code here
+
+  const updatedGrades = students.map((std)=>{
+    if (std.type !=="nerd"){
+    return { ...std, grade:std.grade+curve};
+    }
+    else{return std}
+  }
+  )
+  return updatedGrades
 }
-// 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..668d707 100644
--- a/index.html
+++ b/index.html
@@ -7,6 +7,7 @@
     <title>Arrays</title>
 </head>
 <body>
-    <script src="./arrays.js" type="module" />
+    <script src="./arrays-basics.js" type="module" />
+
 </body>
 </html>
\ No newline at end of file
diff --git a/reviewers.js b/reviewers.js
index eda2973..5fbc3df 100644
--- a/reviewers.js
+++ b/reviewers.js
@@ -1,59 +1,70 @@
-const reviewers = require("./reviewers.json");
-console.log("🚀 ~ file: reviewers.js:2 ~ reviewers:", reviewers);
+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
-}
-// console.log(getReviewerName(reviewers[0]));
+// /*********************************************************************** 
+// - This function receives a reviewer object and should return the name of the reviewer.
+// ***********************************************************************/
+// function getReviewerName(reviewer) {
+// return reviewer.reviewerName
+// }
+// console.log(getReviewerName(reviewers[1]));
 
-/*********************************************************************** 
-- Receives a reviewer object and returns the number of reviews that reviewer has done.
-************************************************************************/
-function numberOfReviews(reviewer) {
-  //TODO: ADD YOUR CODE HERE
-}
-// console.log(numberOfReviews(reviewers[0]));
+// /*********************************************************************** 
+// - Receives a reviewer object and returns the number of reviews that reviewer has done.
+// ************************************************************************/
+// function numberOfReviews(reviewer) {
+//   return reviewer.books.length
 
-/***********************************************************************
- - Receives a review title (string) and a reviewer object, 
-   and returns true if the reviewer object has a review that matches the given review title. 
-   Otherwise, it returns false. 
- - Bonus: uses iteration method .some()
- ***********************************************************************/
-function reviewerHasReview(reviewTitle, reviewer) {
-  //TODO: ADD YOUR CODE HERE
-}
+// }
+// console.log(numberOfReviews(reviewers[1]));
+
+// /***********************************************************************
+//  - Receives a review title (string) and a reviewer object, 
+//    and returns true if the reviewer object has a review that matches the given review title. 
+//    Otherwise, it returns false. 
+//  - Bonus: uses iteration method .some()
+//  ***********************************************************************/
+// function reviewerHasReview(reviewTitle, reviewer) {
+//     return reviewer.books.some(( value)=>{
+//       return value.title === reviewTitle
+//     })
+//   }
 // console.log(reviewerHasReview("Becoming", reviewers[0]));
 
-/**************************************************************
- - Receives a reviewer name (string) and an array of reviewer objects,
-   and returns the reviewer object with the same name as the reviewerName provided. 
- - Bonus: uses iteration method .find()
- ****************************************************************/
-function getReviewerByName(reviewerName, reviewers) {
-  //TODO: ADD YOUR CODE HERE
-}
+// /**************************************************************
+//  - Receives a reviewer name (string) and an array of reviewer objects,
+//    and returns the reviewer object with the same name as the reviewerName provided. 
+//  - Bonus: uses iteration method .find()
+//  ****************************************************************/
+// function getReviewerByName(reviewerName, reviewers) {
+//   return reviewers.find((value)=>{
+//    return value.reviewerName ===reviewerName
+//   })
+// }
 // console.log(getReviewerByName("Michelle Obama", reviewers));
 
-/**************************************************************
-- Receives a review title (string) and an array of reviewer objects, 
-  and returns the reviewer object that has done a review with the review title provided. 
-- Bonus: uses iteration methods .find() and .some()
- ****************************************************************/
+// /**************************************************************
+// - Receives a review title (string) and an array of reviewer objects, 
+//   and returns the reviewer object that has done a review with the review title provided. 
+// - Bonus: uses iteration methods .find() and .some()
+// //  ****************************************************************/
 function getReviewerByReviewTitle(reviewTitle, reviewers) {
-  //TODO: ADD YOUR CODE HERE
+  return reviewers.find((value)=>{
+   return value.books.some(( title)=>{
+    return title.title ===reviewTitle
+    })
+  })
 }
-// console.log(getReviewerByReviewTitle("The Overstory", reviewers));
+console.log(getReviewerByReviewTitle("The Overstory", reviewers));
 
-/**************************************************************
-- Receives a query (string) and an array of reviewer objects,
-  and returns an array of the reviewer objects that contain the query in their name/description. 
-- Hint: uses string method .includes() and iteration method .filter()
- ****************************************************************/
+// /**************************************************************
+// - Receives a query (string) and an array of reviewer objects,
+//   and returns an array of the reviewer objects that contain the query in their name/description. 
+// - Hint: uses string method .includes() and iteration method .filter()
+//  ****************************************************************/
 function searchReviewers(query, reviewers) {
-  //TODO: ADD YOUR CODE HERE
+  return reviewers.filter((reviewers)=>{
+    return reviewers.reviewerName.includes(query)
+  })
 }
-// console.log(searchReviewers("o", reviewers));
+console.log(searchReviewers("o", reviewers));