task Array

arrays-basics.js

@@ -2,46 +2,82 @@
  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) {}
+
+// function logEvenNumbers(arr) {
+//   arr.forEach((value, index) => {
+//     if (value % 2 == 0) {
+//       console.log(value);
+//     }
+//   });
+// }
 
 // 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 rvers =arr.reverse();
+//      console.log(rvers)
+//   }
+
 
 // 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) {
+//   arr.map((value, index) => {
+//     console.log(value);
+
+//     if (index == arr.length - 1) {
+//       console.log("---------------------");
+//       console.log("last item is :", value);
+//     }
+//   });
+// }
 
 // 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 count = arr.slice(i, i +chunkSize);
+//     console.log(count);
+//   }
+// }
 
 // logArrayInChunks([1, 2, 3, 4, 5, 6, 7, 8, 9], 3);

arrays-intermediate.js

@@ -3,9 +3,9 @@
    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((acc ,curr)=> acc + curr )
+// };
 // console.log(sumArray([4, 3, 2, 5, -10]));
 
 /**************************************************************
@@ -15,9 +15,11 @@ 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((value , index) => value.toLowerCase().startsWith(letter))
+// }
 // console.log(
 //   findFirstStringStartingWithLetter("h", ["Memory", "Hello", "Happy"])
 // );
@@ -29,9 +31,10 @@ 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)=> value.toLowerCase().includes(presentName))
+// }
 // console.log(
 //   isPresentIncluded("puzzle", [
 //     "Sparkling Surprise",
@@ -49,9 +52,10 @@ function isPresentIncluded(presentName, presents) {
 
   Hint: Use the .sort() method
 **************************************************************/
-function sortStudentsAlphabetically(students) {
-  //TODO: Add your code here
-}
+// function sortStudentsAlphabetically(students) {
+//   //TODO: Add your code here
+//   return students.sort()
+// }
 // console.log(
 //   sortStudentsAlphabetically([
 //     "Eve",
@@ -77,9 +81,20 @@ 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 even =[];
+//   let odd =[];
+//   numbers.forEach((value ,index) => {
+//     if (value % 2 === 0){
+//      even.push(value)
+//     }else{
+//       odd.push(value)
+//     }
+
+//   });
+//    return {even,odd}
+// }
 // console.log(separateOddEven([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]));
 
 /**************************************************************
@@ -99,9 +114,10 @@ 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)=> value.code != code );
+// }
 // console.log(
 //   removeItem("#153", [
 //     { code: "#153", name: "Ball" },
@@ -156,9 +172,18 @@ Task 7:
 
    Hint: Use the .map method and separator operator
 **************************************************************/
-function updateGrades(curve, students) {
-  //TODO: Add your code here
-}
+// function updateGrades(curve, students) {
+//   //TODO: Add your code here
+//    students.map((value,index)=>{
+//         if(value.type === "nerd"){
+//            value.grade -= curve
+//         }else{
+//            value.grade += curve
+//         }
+
+//   });
+//   return students
+// }
 // console.log(
 //   updateGrades(10, [
 //     { firstName: "Jaber", lastName: "jabarbar", grade: 10, type: "regular" },

index.html

@@ -7,6 +7,9 @@
     <title>Arrays</title>
 </head>
 <body>
-    <script src="./arrays.js" type="module" />
+    <!-- <script src="arrays-basics.js" type="module" /> -->
+    <!-- <script src="arrays-intermediate.js" type="module" /> -->
+    <script src="reviewers.js" type="module" />
+
 </body>
 </html>

reviewers.js

@@ -1,59 +1,86 @@
-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, 
    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) {
+
+ function reviewerHasReview(reviewTitle, reviewer) {
   //TODO: ADD YOUR CODE HERE
+   const cheack = reviewer.books.some((value) =>{
+
+   if(value.title === reviewTitle){
+    return true
+   }else {
+    return false
+   }
+   });
+ return cheack
+
 }
-// console.log(reviewerHasReview("Becoming", reviewers[0]));
+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) {
+
+ 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, 
   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(valuebook =>valuebook.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()
  ****************************************************************/
+
 function searchReviewers(query, reviewers) {
   //TODO: ADD YOUR CODE HERE
-}
-// console.log(searchReviewers("o", reviewers));
+  return reviewers.filter((value)=> 
+   ( value.reviewerName.toLowerCase().includes(query))  ||  (value.description.toLowerCase().includes(query))
+  )
+  };
+
+console.log(searchReviewers("o", reviewers));