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
+constfifteen=inventors.filter(inventor=>{
+if(inventor.year>=1500&&inventor.year<1600){
+returntrue;
+}
+})
+console.table(fifteen)
 
 // Array.prototype.map()
 // 2. Give us an array of the inventors first and last names
+constnames=inventors.map(inventor=>inventor.first+" "+inventor.last)
+console.log(names)
+
 
 // Array.prototype.sort()
 // 3. Sort the inventors by birthdate, oldest to youngest
+constsorted=inventors.sort((a,b)=>{
+returna.year-b.year
+});
+console.table(sorted)
 
 // Array.prototype.reduce()
 // 4. How many years did all the inventors live all together?
+consttotalAge=inventors.reduce((total,inventor)=>{
+returntotal+(inventor.passed-inventor.year);
+},0)
+console.log(totalAge)
 
 // 5. Sort the inventors by years lived
+constsortedAlive=inventors.sort((a,b)=>{
+constlastGuy=a.passed-a.year;
+constnextGuy=b.passed-b.year;
+returnlastGuy>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
+constsortedNames=people.sort()
+console.log(sortedNames)
+
 
 // 8. Reduce Exercise
 // Sum up the instances of each of these
 constdata=['car','car','truck','truck','bike','walk','car','van','bike','walk','car','van','car','truck'];
 
+consttransportation=data.reduce(function(obj,item){
+if(!obj[item]){
+obj[item]=0;
+}
+obj[item]++;
+returnobj;
+},{});
+console.log(transportation)
+
+
+
 </script>
 </body>
 </html>