cardio done

Author: Miguel Bautista

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

@@ -32,29 +32,63 @@
 
     // Array.prototype.filter()
     // 1. Filter the list of inventors for those who were born in the 1500's
-
+    let fifteen = inventors.filter(inventor =>(inventor.year >= 1500 && inventor.year < 1600));
+    console.table(fifteen);
     // Array.prototype.map()
     // 2. Give us an array of the inventors' first and last names
+    let firstNameLastName = inventors.map(inventor => inventor.first +" "+ inventor.last);
+    console.log(firstNameLastName);
 
     // Array.prototype.sort()
     // 3. Sort the inventors by birthdate, oldest to youngest
+    let birthdays = inventors.sort((a,b)=>(a.year > b.year) ? 1 : -1);
+    console.table(birthdays);
 
     // Array.prototype.reduce()
     // 4. How many years did all the inventors live?
+    let totalYears = inventors.reduce((total, inventor)=> {
+      return total + (inventor.passed - inventor.year);
+    }, 0); // note the zero at the end
+    console.log(totalYears);
+
 
     // 5. Sort the inventors by years lived
 
+    let oldest = inventors.sort((a,b) => {
+      let lastPerson = a.passed - a.year;
+      let nextPerson = b.passed - b.year;
+      return (lastPerson > nextPerson) ? 1 : -1;
+    });
+
+    console.table(oldest);
+
     // 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
+    let alphabetically = people.sort((lastOne, nextOne)=>{
+      let [aLast, aFirst] = lastOne.split(', ');
+      let [bLast, bFirst] = nextOne.split(', ');
+      return aLast > bLast ? 1 : -1;
+    });
+    console.log(alphabetically);
 
     // 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' ];
 
+
+    let transportation = data.reduce((obj, item)=>{
+      if (!obj[item]){
+        obj[item] = 0;
+      }
+      obj[item]++;
+      return obj;
+    }, {});
+    console.log(transportation);
+
   </script>
 </body>
 </html>