Finished MVP

assignments/array-methods.js

@@ -57,22 +57,25 @@ const runners = [
 
 // ==== 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 and populate a new array called `fullNames`. This array will contain just strings.
-let fullNames = [];
+runners.forEach(runner => (runner.full_name = `${runner.first_name} ${runner.last_name}`));
+let fullNames = runners.map(runner => runner['full_name']);
 console.log(fullNames);
 
 // ==== Challenge 2: Use .map() ====
 // The event director needs to have all the runners' first names in uppercase because the director BECAME DRUNK WITH POWER. Populate an array called `firstNamesAllCaps`. This array will contain just strings.
-let firstNamesAllCaps = [];
+let firstNamesAllCaps = runners.map(runner => runner['first_name'].toUpperCase());
 console.log(firstNamesAllCaps);
 
 // ==== Challenge 3: Use .filter() ====
 // The large shirts won't be available for the event due to an ordering issue. We need a filtered version of the runners array, containing only those runners with large sized shirts so they can choose a different size. This will be an array of objects.
-let runnersLargeSizeShirt = [];
+let runnersLargeSizeShirt = runners.filter(runner => runner.shirt_size === 'L');
 console.log(runnersLargeSizeShirt);
 
 // ==== Challenge 4: Use .reduce() ====
 // The donations need to be tallied up and reported for tax purposes. Add up all the donations and save the total into a ticketPriceTotal variable.
-let ticketPriceTotal = 0;
+let donations = runners.map(runner => runner['donation']);
+let ticketPriceTotal = donations.reduce((total, donation) => total + donation);
+
 console.log(ticketPriceTotal);
 
 // ==== Challenge 5: Be Creative ====

assignments/callbacks.js

@@ -41,25 +41,42 @@ const items = ['Pencil', 'Notebook', 'yo-yo', 'Gum'];
 
 function getLength(arr, cb) {
   // getLength passes the length of the array into the callback.
+  return cb(arr.length);
 }
+const testLen = getLength(items, length=> `Array length is ${length}`);
+console.log(testLen);
 
 function last(arr, cb) {
   // last passes the last item of the array into the callback.
+  return cb(arr[arr.length - 1]);
 }
+const lastTest = last(items, item => `Last item is ${item}`);
+console.log(lastTest);
 
 function sumNums(x, y, cb) {
   // sumNums adds two numbers (x, y) and passes the result to the callback.
+  return cb(x+y);
 }
+const sumOfNums = sumNums(6,8, sum => `Sum is ${sum}`);
+console.log(sumOfNums);
 
 function multiplyNums(x, y, cb) {
   // multiplyNums multiplies two numbers and passes the result to the callback.
+  return cb(x*y);
 }
+const mulSum = multiplyNums(4, 9, product => `Product is ${product}`);
+console.log(mulSum);
 
 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.
+  return cb(list.includes(item));
 }
+const check1 = contains('Notebook', items, includes => `Item included: ${includes}`);
+console.log(check1);
 
+const check2 = contains('Book', items, includes => `Item included ${includes}`);
+console.log(check2);
 /* STRETCH PROBLEM */
 
 function removeDuplicates(array, cb) {

assignments/closure.js

@@ -4,7 +4,10 @@
 // that manipulates variables defined in the outer scope.
 // The outer scope can be a parent function, or the top level of the script.
 
-
+const closure = () => {
+  let closeData = '';
+  return data => (closureData += data);
+};
 /* STRETCH PROBLEMS, Do not attempt until you have completed all previous tasks for today's project files */