Array cardio wesbos#1

Author: vengatesh5498

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

@@ -38,29 +38,65 @@
 
     // Array.prototype.filter()
     // 1. Filter the list of inventors for those who were born in the 1500's
+    const fifteen = inventors.filter (inventor=>(inventor.year >=1500 && inventor.year <= 1599));
+    console.table(fifteen);
 
     // Array.prototype.map()
     // 2. Give us an array of the inventors first and last names
+    const fullName = inventors.map (inventor=> `${inventor.first} ${inventor.second}`);
+    console.log (fullName);
 
     // Array.prototype.sort()
     // 3. Sort the inventors by birthdate, oldest to youngest
+    const sortedBirthdate = inventors.sort ((a,b)=> a.year>b.year ? 1: -1);
+    console.table(sortedBirthdate);
 
     // Array.prototype.reduce()
     // 4. How many years did all the inventors live all together?
+    const livedYears = inventors.reduce ((total,inventor) => {
+      return total + (inventor.passed - inventor.year);
+    },0);
+    console.log(livedYears);
 
     // 5. Sort the inventors by years lived
+    const oldest = inventors.sort ((a,b)=> {
+      const lastGuy = a.passed - a.year;
+      const firstGuy = b.passed - b.year;
+      return lastGuy > firstGuy ? -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
+    // const category = document.querySelector(".mw-content-ltr");
+    // const links = category.querySelectorAll('a');
+
 
 
     // 7. sort Exercise
     // Sort the people alphabetically by last name
 
+    const reverseSort = people.sort ((firstName,lastName)=>{
+    const [aLast, aFirst] = firstName.split(', ');
+    const [bLast, bFirst] = lastName.split(', '); 
+    return aLast > bLast ? 1:-1});
+    console.table(reverseSort);
+
     // 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 vehicles = data.reduce(function(obj,item){
+      if (!obj[item]){
+        obj [item]=0;
+      }
+      obj[item]++;
+      return obj;
+    },{});
+
+    console.log(vehicles);
+
   </script>
 </body>
 </html>