D-Fink · D-Fink · Oct 15, 2019
diff --git a/assignments/array-methods.js b/assignments/array-methods.js
@@ -58,28 +58,60 @@ 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 = [];
+const names = runners.forEach((runner) => {
+  return fullNames.push(`${runner.first_name} ${runner.last_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 = [];
+const UpperCaseNames = runners.map((runner) => {
+  return firstNamesAllCaps.push(`${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 => {
+    return 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;
+const donationTotal = runners.reduce((accumulator, runner) => {
+  return ticketPriceTotal = accumulator + runner.donation
+}, 0);
 console.log(ticketPriceTotal);
 
 // ==== Challenge 5: Be Creative ====
 // Now that you have used .forEach(), .map(), .filter(), and .reduce().  I want you to think of potential problems you could solve given the data set and the 5k fun run theme.  Try to create and then solve 3 unique problems using one or many of the array methods listed above.
 
 // Problem 1
+//return the number of all shirt sizes
+let shirtSizeXS = runners.filter(runner => {return runner.shirt_size === "XS"}).length;
+let shirtSizeS = runners.filter(runner => {return runner.shirt_size === "S"}).length;
+let shirtSizeM = runners.filter(runner => {return runner.shirt_size === "M"}).length;
+let shirtSizeL = runners.filter(runner => {return runner.shirt_size === "L"}).length;
+let shirtSizeXL = runners.filter(runner => {return runner.shirt_size === "XL"}).length;
+let shirtSizeXXL = runners.filter(runner => {return runner.shirt_size === "2XL"}).length;
+let shirtSizeXXXL = runners.filter(runner => {return runner.shirt_size === "3XL"}).length;
+let shirtCount = `XS:${shirtSizeXS} S:${shirtSizeS} M:${shirtSizeM} L:${shirtSizeL} XL:${shirtSizeXL} 2XL:${shirtSizeXXL} 3XL: ${shirtSizeXXXL}`
+console.log(shirtCount);
 
 // Problem 2
-
-// Problem 3
+//return people who donated a minimum of 50
+let minDonators = runners.filter(runner => {
+  return runner.donation >= 50
+});
+console.log(minDonators)
+// Problem 3
+//return names alphabetically last name first
+let lastFirstNames = [];
+const convertNames = runners.forEach((runner) => {
+  return lastFirstNames.push(`${runner.last_name} ${runner.first_name}`);
+});
+namesSorted = lastFirstNames.sort()
+console.log(namesSorted)
diff --git a/assignments/callbacks.js b/assignments/callbacks.js
@@ -41,24 +41,48 @@ 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 test1 = getLength(items, length => `This array is ${length} long`);
+console.log(test1)
 
 function last(arr, cb) {
   // last passes the last item of the array into the callback.
+  return cb(arr[arr.length - 1])
 }
+const test2 = last(items, item => `The last item is ${item}`)
+console.log(test2)
 
+function add(x, y){
+  return x + y
+}
 function sumNums(x, y, cb) {
   // sumNums adds two numbers (x, y) and passes the result to the callback.
+  return cb(x, y)
 }
+const test3 = sumNums(3, 4, add);
+console.log(test3)
 
+function multiply(x, y){
+  return x * y
+}
 function multiplyNums(x, y, cb) {
   // multiplyNums multiplies two numbers and passes the result to the callback.
+  return cb(x, y)
 }
+const test4 = multiplyNums(3, 5, multiply);
+console.log(test4)
 
+function trueOrFalse(item, list){
+  return list.includes(item)
+}
 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(item, list)
 }
+const test5 = contains("Pencil", items, trueOrFalse)
+console.log(test5)
 
 /* STRETCH PROBLEM */
 

diff --git a/assignments/closure.js b/assignments/closure.js
@@ -3,7 +3,12 @@
 // Keep it simple! Remember a closure is just a function
 // that manipulates variables defined in the outer scope.
 // The outer scope can be a parent function, or the top level of the script.
-
+const yogi = "Yogi Bear"
+function description(){
+  const likes = "pic-a-nic baskets";
+  return (`${yogi} loves ${likes}`);
+}
+console.log(description());
 
 /* STRETCH PROBLEMS, Do not attempt until you have completed all previous tasks for today's project files */