Completed exercise wesbos#4

Author: Kenref

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

@@ -38,29 +38,66 @@
 
     // Array.prototype.filter()
     // 1. Filter the list of inventors for those who were born in the 1500's
+    const fifteen = inventors.filter(inventor => {
+      if(inventor.year >= 1500 && inventor.year < 1600) {
+        return true;
+      }
+    })
+    console.table(fifteen)
 
     // Array.prototype.map()
     // 2. Give us an array of the inventors first and last names
+    const names = inventors.map(inventor => inventor.first + " " + inventor.last)
+    console.log(names)
+
 
     // Array.prototype.sort()
     // 3. Sort the inventors by birthdate, oldest to youngest
+    const sorted = inventors.sort((a, b) => {
+      return a.year - b.year
+    });
+    console.table(sorted)
 
     // Array.prototype.reduce()
     // 4. How many years did all the inventors live all together?
+    const totalAge = inventors.reduce((total, inventor) => {
+      return total + (inventor.passed - inventor.year);
+    }, 0)
+    console.log(totalAge)
 
     // 5. Sort the inventors by years lived
+    const sortedAlive = inventors.sort((a, b) => {
+      const lastGuy = a.passed - a.year;
+      const nextGuy = b.passed - b.year;
+      return lastGuy > nextGuy ? -1 : 1
+    })
+    console.table(sortedAlive)
 
     // 6. create a list of Boulevards in Paris that contain 'de' anywhere in the name
     // https://en.wikipedia.org/wiki/Category:Boulevards_in_Paris
 
 
     // 7. sort Exercise
     // Sort the people alphabetically by last name
+    const sortedNames = people.sort()
+    console.log(sortedNames)
+
 
     // 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 transportation = data.reduce(function(obj, item) {
+      if(!obj[item]) {
+        obj[item] = 0;
+      }
+      obj[item]++;
+      return obj;
+    }, {});
+console.log(transportation)
+
+
+
   </script>
 </body>
 </html>