Complete day 4

Kirk byers · Kirk byers · commit 968d44568ed9 · 2016-12-28T12:53:34.000-06:00
diff --git a/04 - Array Cardio Day 1/index-START.html b/04 - Array Cardio Day 1/index-START.html
@@ -27,29 +27,69 @@
 
     // Array.prototype.filter()
     // 1. Filter the list of inventors for those who were born in the 1500's
+    const fifteens = inventors.filter(inventor => inventor.year >= 1500 && inventor.year <1600);
+    console.log(fifteens);
 
     // Array.prototype.map()
     // 2. Give us an array of the inventory first and last names
+    const invFirstLast = inventors.map(inventor => Object.assign({}, {first: inventor.first, last: inventor.last}));
+    console.log(invFirstLast);
 
     // Array.prototype.sort()
     // 3. Sort the inventors by birthdate, oldest to youngest
+    const invSortBirth = inventors.sort((a, b) => a.year - b.year);
+    console.log(invSortBirth);
 
     // Array.prototype.reduce()
     // 4. How many years did all the inventors live?
+    const totalYears = inventors.reduce((total, inventor) => {
+      return total + (inventor.passed - inventor.year);
+    }, 0)
+    console.log(totalYears);
 
     // 5. Sort the inventors by years lived
+    const invSortLived = inventors.sort((a, b) => (a.passed - a.year) - (b.passed - b.year));
+    console.log(invSortLived);
 
     // 6. create a list of Boulevards in Paris that contain 'de' anywhere in the name
     // https://en.wikipedia.org/wiki/Category:Boulevards_in_Paris
+    /**
+    const div = document.querySelector('.mw-category');
+    const streets = Array.from(div.querySelectorAll('a'));
+    const de = streets
+                .map(street => street.textContent)
+                .filter(street => street.included('de'))
+    
+    console.log(de);
+    */
 
 
     // 7. sort Exercise
     // Sort the people alphabetically by last name
+    const peopSort = people.sort((a, b) => {
+      const [prevLast, prevFirst] = a.split(', ');
+      const [nextLast, nextFirst] = b.split(', ');
+
+      return prevLast > nextLast ? 1 : -1;
+    });
+
+    console.log(peopSort);
 
     // 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 counts = data.reduce((dataCount, entry) => {
+      if (dataCount[entry]) {
+        dataCount[entry] ++;
+      } else {
+        dataCount[entry] = 1;
+      }
+      return dataCount;
+    }, {});
+
+    console.log(counts);
+
   </script>
 </body>
 </html>
