WEBEU3 - Martin Mensah - Oluwafemi Anjorin - Week 03 Day 02

.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+    "liveServer.settings.port": 5501
+}

assignments/array-methods.js

@@ -60,21 +60,38 @@ const runners = [
 let fullNames = [];
 console.log(fullNames);
 
+runners.forEach (function (runner) {
+  return fullNames.push(`${runner.first_name} ${runner.last_name}`)
+})
+
+
 // ==== 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 = [];
 console.log(firstNamesAllCaps);
 
+runners.map (function (runner) {
+  return firstNamesAllCaps.push(`${runner.first_name.toUpperCase()}`);
+})
+
 // ==== 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 = [];
 console.log(runnersLargeSizeShirt);
 
+runnersLargeSizeShirt = runners.filter (function (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;
 console.log(ticketPriceTotal);
 
+ticketPriceTotal = runners.reduce((total, runner) => {
+  return total + 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.
 

assignments/callbacks.js

@@ -41,23 +41,33 @@ const items = ['Pencil', 'Notebook', 'yo-yo', 'Gum'];
 
 function getLength(arr, cb) {
   // getLength passes the length of the array into the callback.
+   cb(arr.length);
 }
 
 function last(arr, cb) {
   // last passes the last item of the array into the callback.
+   cb(arr[arr.length - 1]);
 }
 
 function sumNums(x, y, cb) {
   // sumNums adds two numbers (x, y) and passes the result to the callback.
+   cb(x + y);
 }
 
 function multiplyNums(x, y, cb) {
   // multiplyNums multiplies two numbers and passes the result to the callback.
+   cb( x * y);
 }
 
 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.
+  for(let i = 0; i < list.length; i++) {
+    if (list[i] === item) {
+      return cb(true);
+    }
+  }
+  return cb(false);
 }
 
 /* STRETCH PROBLEM */

assignments/closure.js

@@ -3,7 +3,16 @@
 // 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.
+function totalSum() {
+  var number = 16;
+  function displaySum() {
+        return (12 + number);
+  }
+  return displaySum;
+}
 
+var myFunc = totalSum();
+myFunc();
 
 /* STRETCH PROBLEMS, Do not attempt until you have completed all previous tasks for today's project files */