diff --git a/arrays-basics.js b/arrays-basics.js
index 0de468d..a6801ac 100644
--- a/arrays-basics.js
+++ b/arrays-basics.js
@@ -2,31 +2,41 @@
  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((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"]);
 
 /**************************************************************
    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) {
+//   return  console.log(arr.filter((value,index)=> value %2===0))
+// }
+//  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) {
+//   const rev=arr.reverse()
+//   console.log(rev);
+// }
 
 // logArrayBackwards(["one", "two", "three", "four"]);
 
@@ -34,14 +44,22 @@ function logArrayBackwards(arr) {}
    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) {
+//   let last=arr.length-1
+//   console.log(arr[last]);
+// }
 // 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=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..d263528 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) {
+//   return numbers.reduce(
+//     (accumulator, currentValue) => accumulator + currentValue
+//     
+//   );
+// }
 // console.log(sumArray([4, 3, 2, 5, -10]));
 
 /**************************************************************
@@ -15,13 +18,15 @@ function sumArray(numbers) {
   
   Hint: Use the .find() and .startsWith() methods
 **************************************************************/
-function findFirstStringStartingWithLetter(letter, strings) {
-  //TODO: Add your code here
-}
+// function findFirstStringStartingWithLetter(letter, strings) {
+//   //TODO: Add your code here
+  
+//   return strings.find((str)=>str.toLowerCase().startsWith(letter))
+// }
 // console.log(
 //   findFirstStringStartingWithLetter("h", ["Memory", "Hello", "Happy"])
 // );
-
+ 
 /**************************************************************
  Task 3:
   Create a function isPresentIncluded that receives an array of presents as a parameter and uses the includes method to check 
@@ -29,9 +34,12 @@ function findFirstStringStartingWithLetter(letter, strings) {
   
   Hint: Use the .map() and .includes() methods
 **************************************************************/
-function isPresentIncluded(presentName, presents) {
-  //TODO: Add your code here
-}
+// function isPresentIncluded(presentName, presents) {
+//   // TODO: Add your code here
+//    return presents.map((value,index)=>
+//     value.toLowerCase().includes(presentName)
+//   )
+// }
 // console.log(
 //   isPresentIncluded("puzzle", [
 //     "Sparkling Surprise",
@@ -49,9 +57,10 @@ function isPresentIncluded(presentName, presents) {
 
   Hint: Use the .sort() method
 **************************************************************/
-function sortStudentsAlphabetically(students) {
+// function sortStudentsAlphabetically(students) {
   //TODO: Add your code here
-}
+//   return students.sort()
+// }
 // console.log(
 //   sortStudentsAlphabetically([
 //     "Eve",
@@ -77,9 +86,17 @@ function sortStudentsAlphabetically(students) {
 
    Hint: Use the .forEach() and .push() methods
 **************************************************************/
-function separateOddEven(numbers) {
-  //TODO: Add your code here
-}
+// function separateOddEven(numbers) {
+//   //TODO: Add your code here
+//   let odds=[];
+//   let evens=[];
+//   numbers.forEach((num) => {
+//     if(num %2===0) {
+//       evens.push(num)
+//     } else {odds.push(num)}
+//   });
+//   return {evens,odds}
+// }
 // console.log(separateOddEven([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]));
 
 /**************************************************************
@@ -99,9 +116,9 @@ function separateOddEven(numbers) {
 
   Hint: Use the .filter and .startsWith method
 **************************************************************/
-function removeItem(code, items) {
-  //TODO: Add your code here
-}
+// function removeItem(code, items) {
+// //   // TODO: Add your code here
+//  return items.filter((value,index)=>value.code !=code )}
 // console.log(
 //   removeItem("#153", [
 //     { code: "#153", name: "Ball" },
@@ -158,14 +175,21 @@ Task 7:
 **************************************************************/
 function updateGrades(curve, students) {
   //TODO: Add your code here
+  
+   students.map((value,index)=>{
+    if (value.type==="nerd"){
+      return value.grade-=curve
+    } else{return value.grade+=curve}
+  })
+  return students
 }
-// 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..1b7f759 100644
--- a/index.html
+++ b/index.html
@@ -7,6 +7,6 @@
     <title>Arrays</title>
 </head>
 <body>
-    <script src="./arrays.js" type="module" />
+    <script src="./reviewers.js" type="module" />
 </body>
 </html>
\ No newline at end of file
diff --git a/reviewers.js b/reviewers.js
index eda2973..ff3a002 100644
--- a/reviewers.js
+++ b/reviewers.js
@@ -1,21 +1,23 @@
-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
+   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, 
@@ -25,8 +27,12 @@ function numberOfReviews(reviewer) {
  ***********************************************************************/
 function reviewerHasReview(reviewTitle, reviewer) {
   //TODO: ADD YOUR CODE HERE
+   return reviewer.books.some((value)=>
+   value.title=reviewTitle
+   
+  )
 }
-// console.log(reviewerHasReview("Becoming", reviewers[0]));
+console.log(reviewerHasReview("Becoming", reviewers[0]));
 
 /**************************************************************
  - Receives a reviewer name (string) and an array of reviewer objects,
@@ -35,8 +41,10 @@ function reviewerHasReview(reviewTitle, reviewer) {
  ****************************************************************/
 function getReviewerByName(reviewerName, reviewers) {
   //TODO: ADD YOUR CODE HERE
+  return reviewers.find((value) => value.reviewerName === reviewerName);
+  
 }
-// console.log(getReviewerByName("Michelle Obama", reviewers));
+console.log(getReviewerByName("Michelle Obama", reviewers));
 
 /**************************************************************
 - Receives a review title (string) and an array of reviewer objects, 
@@ -45,8 +53,10 @@ function getReviewerByName(reviewerName, reviewers) {
  ****************************************************************/
 function getReviewerByReviewTitle(reviewTitle, reviewers) {
   //TODO: ADD YOUR CODE HERE
+  return reviewers.find((value)=>
+  value.reviewTitle=reviewTitle);
 }
-// console.log(getReviewerByReviewTitle("The Overstory", reviewers));
+console.log(getReviewerByReviewTitle("The Overstory", reviewers));
 
 /**************************************************************
 - Receives a query (string) and an array of reviewer objects,
@@ -55,5 +65,8 @@ function getReviewerByReviewTitle(reviewTitle, reviewers) {
  ****************************************************************/
 function searchReviewers(query, reviewers) {
   //TODO: ADD YOUR CODE HERE
+  return reviewers.filter((value,index)=>
+    value.reviewerName.includes(query) || value.description.includes(query)
+  )
 }
-// console.log(searchReviewers("o", reviewers));
+console.log(searchReviewers("o", reviewers));