finished first 3 array challanges

Author: mjdude

04 - Array Cardio Day 1/index-START.html

@@ -31,13 +31,33 @@
 
     // Array.prototype.filter()
     // 1. Filter the list of inventors for those who were born in the 1500's
+    const fifteen = inventors.filter((inventor) => {
+      return inventor.year >= 1500 && inventor.year <= 1600;
+    });
+
+    console.log('Born in 1500:');
+    console.log(fifteen);
 
     // Array.prototype.map()
     // 2. Give us an array of the inventors' first and last names
 
+    const fullNames = inventors.map((inventor) => {
+      return `${inventor.first} ${inventor.last}`;
+    });
+    console.log('inventors full names:');
+    console.log(fullNames);
+
     // Array.prototype.sort()
     // 3. Sort the inventors by birthdate, oldest to youngest
+    const birthdate = inventors.sort((a,b) => {
+      const a_age = a.passed - a.year;
+      const b_age = b.passed - b.year;
+
+      return b_age - a_age;
+    })
 
+    console.log('Birthday oldest to youngest');
+    console.log(birthdate);
     // Array.prototype.reduce()
     // 4. How many years did all the inventors live?