working on array methods

assignments/array-methods.js

@@ -55,7 +55,10 @@ const runners = [{"id":1,"first_name":"Charmain","last_name":"Seiler","email":"c
 
 // ==== Challenge 1: Use .forEach() ====
 // The event director needs both the first and last names of each runner for their running bibs.  Combine both the first and last names into a new array called fullName. 
-let fullName = [];
+let fullName = runners["first_name", "last_name"];
+//fullName.forEach(function(element) {
+
+//})
 console.log(fullName);
 
 // ==== Challenge 2: Use .map() ====

assignments/callbacks.js

@@ -1,6 +1,6 @@
 // Create a higher order function and invoke the callback function to test your work. You have been provided an example of a problem and a solution to see how this works with our items array.  Study both the problem and the solution to figure out the rest of the problems.
 
-const items = ['Pencil', 'Notebook', 'yo-yo', 'Gum'];
+const items = ['Pencil', 'Notebook', 'yo-yo', 'Gum',];
 
 /* 
 
@@ -27,20 +27,42 @@ const items = ['Pencil', 'Notebook', 'yo-yo', 'Gum'];
 
 function getLength(arr, cb) {
   // getLength passes the length of the array into the callback.
+  cb(items.length);
+  console.log(getLength);
 }
+//   console.log(`The Length is: ${items.length}`);
+// }
+// getLength();
 
+const cb = x => {
+  console.log("Last item is: ", x);
+  return x;
+}
 function last(arr, cb) {
   // last passes the last item of the array into the callback.
+  return cb(arr[items.length - 1]);
 }
+last(items, cb);
+
 
 function sumNums(x, y, cb) {
   // sumNums adds two numbers (x, y) and passes the result to the callback.
+  cb(x + y);
 }
+sumNums(7, 7, answer => {
+  console.log(`The Answer is: ${answer}.`)
+})
+
 
 function multiplyNums(x, y, cb) {
   // multiplyNums multiplies two numbers and passes the result to the callback.
+  cb(x * y);
 }
 
+multiplyNums(7, 7, answer => {
+  console.log(`The answer is: ${answer}.`)
+})
+
 function contains(item, list, cb) {
   // contains checks if an item is present inside of the given array/list.
   // Pass true to the callback if it is, otherwise pass false.

assignments/closure.js

@@ -1,7 +1,12 @@
 // ==== Challenge 1: Write your own closure ====
 // Write a simple closure of your own creation.  Keep it simple!
 
+const minXpReached = "Level Up!"
+function levelUp() { 
+  alert(minXpReached);
+}
 
+//levelUp();
 /* STRETCH PROBLEMS, Do not attempt until you have completed all previous tasks for today's project files */