From 7ad53f990790ed7b6bfb29140ba760cf9b176ce9 Mon Sep 17 00:00:00 2001
From: adnan-kibria <adnan.official.rb000@gmail.com>
Date: Sat, 25 Oct 2025 12:30:41 +0600
Subject: [PATCH 1/2] Exercise completed but some are undone

---
 04 - Array Cardio Day 1/index-START.html | 42 ++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/04 - Array Cardio Day 1/index-START.html b/04 - Array Cardio Day 1/index-START.html
index 0dcfd00f40..fe686f64e3 100644
--- a/04 - Array Cardio Day 1/index-START.html	
+++ b/04 - Array Cardio Day 1/index-START.html	
@@ -38,17 +38,40 @@
     
     // Array.prototype.filter()
     // 1. Filter the list of inventors for those who were born in the 1500's
+    const filteredInventors = inventors.filter(
+      (inventorsYear) => inventorsYear.year >= 1500 && inventorsYear.year < 1600 
+    )
+    console.log(filteredInventors);
 
     // Array.prototype.map()
     // 2. Give us an array of the inventors first and last names
+    const inventorsFirstLastNames = inventors.map(
+      (names) => `${names.first}  ${names.last}`
+    )
+    console.log(inventorsFirstLastNames);
 
     // Array.prototype.sort()
     // 3. Sort the inventors by birthdate, oldest to youngest
+    const inventorsBirthDateDesc = inventors.sort(
+      (oldest, newest) => oldest.year < newest.year ? 1 : -1
+    )
+    console.log(inventorsBirthDateDesc);
 
     // Array.prototype.reduce()
     // 4. How many years did all the inventors live all together?
+    const sumOfInventorsLifeSpan = inventors.reduce(
+      (total, inventorsAge) => {
+        return total + (inventorsAge.passed - inventorsAge.year);
+      }, 0);
+    console.log(sumOfInventorsLifeSpan);
 
     // 5. Sort the inventors by years lived
+    let inventorsLifeSpan = [];
+    inventors.forEach(
+      (years) => inventorsLifeSpan.push(years.passed - years.year)
+    )
+    const yearLived = inventorsLifeSpan.sort((a,b) => a > b ? 1 : -1);
+    console.log(yearLived);
 
     // 6. create a list of Boulevards in Paris that contain 'de' anywhere in the name
     // https://en.wikipedia.org/wiki/Category:Boulevards_in_Paris
@@ -56,10 +79,29 @@
 
     // 7. sort Exercise
     // Sort the people alphabetically by last name
+    const sortPeopleByLastName = people.sort(
+      (a,b) => {const aa = a.split(', ')[0];
+               const bb = b.split(', ')[0];
+               return aa > bb ? 1 : -1;
+              }
+    )
+    console.log(sortPeopleByLastName);
 
     // 8. Reduce Exercise
     // Sum up the instances of each of these
     const data = ['car', 'car', 'truck', 'truck', 'bike', 'walk', 'car', 'van', 'bike', 'walk', 'car', 'van', 'car', 'truck' ];
+    const sumOfInstances = data.reduce(
+      (object, items) => {
+        if(object[items]){
+          object[items] = object[items] +1;
+        }
+        else{
+          object[items] = 1;
+        }
+        return object;
+      }, {})
+    console.log(sumOfInstances);
+    
 
   </script>
 </body>

From c36b788432a1641ed78754c8326b1b24a4d70441 Mon Sep 17 00:00:00 2001
From: adnan-kibria <adnan.official.rb000@gmail.com>
Date: Sat, 25 Oct 2025 13:02:34 +0600
Subject: [PATCH 2/2] exercise is completed

---
 07 - Array Cardio Day 2/index-START.html | 25 ++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/07 - Array Cardio Day 2/index-START.html b/07 - Array Cardio Day 2/index-START.html
index 4ca34c7536..328002186d 100644
--- a/07 - Array Cardio Day 2/index-START.html	
+++ b/07 - Array Cardio Day 2/index-START.html	
@@ -28,14 +28,39 @@
     // Some and Every Checks
     // Array.prototype.some() // is at least one person 19 or older?
     // Array.prototype.every() // is everyone 19 or older?
+    const currentYear = new Date().getFullYear();
+    const someAge = people.some(
+      (age) => {
+        age = currentYear - age.year;
+        return age >= 19 ? true : false;
+      }
+    )
+    console.log(someAge);
+    const everyAge = people.every(
+      (age) => {
+        age = currentYear - age.year;
+        return age >= 19 ? true : false;
+      }
+    )
+    console.log(everyAge);
 
     // Array.prototype.find()
     // Find is like filter, but instead returns just the one you are looking for
     // find the comment with the ID of 823423
+    const findCommentById = comments.find(
+      (id) => id.id === 823423
+    );
+    console.log(findCommentById);
 
     // Array.prototype.findIndex()
     // Find the comment with this ID
     // delete the comment with the ID of 823423
+    const findCommentByIndex = comments.findIndex(
+      (index) => index.id == 823423
+    )
+    console.log(findCommentByIndex);
+    comments.splice(1, 1);
+    console.log(comments);
 
   </script>
 </body>