bloominstituteoftechnology · ShardeDeLane · Aug 16, 2018 · Aug 16, 2018 · Sep 2, 2018 · Sep 19, 2018
diff --git a/assignments/array-methods.js b/assignments/array-methods.js
@@ -54,24 +54,38 @@ const runners = [{"id":1,"first_name":"Charmain","last_name":"Seiler","email":"c
 {"id":50,"first_name":"Shell","last_name":"Baine","email":"[email protected]","shirt_size":"M","company_name":"Gabtype","donation":171}];
 
 // ==== 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 = [];
-console.log(fullName);
+// 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.
+// runners
+// .forEach(function(obj) {
+// fullName.push(`${obj.first_name} ${obj.last_name}`)
+// })
+let fullName = []
+runners
+  .forEach(function(obj){
+    fullName.push(`${obj.first_name} ${obj.last_name}`)
+  })
+console.log(fullName)
 
 // ==== Challenge 2: Use .map() ====
 // The event director needs to have all the runner's first names converted to uppercase because the director BECAME DRUNK WITH POWER. Convert each first name into all caps and log the result
-let allCaps = [];
-console.log(allCaps); 
+let allCaps = []
+allCaps = runners
+  .map(capital => `${capital.first_name.toUpperCase()}`)
+console.log(allCaps)
 
 // ==== Challenge 3: Use .filter() ====
 // The large shirts won't be available for the event due to an ordering issue.  Get a list of runners with large sized shirts so they can choose a different size. Return an array named largeShirts that contains information about the runners that have a shirt size of L and log the result
-let largeShirts = [];
-console.log(largeShirts);
+let largeShirts = []
+largeShirts = runners
+  .filter(large => largeShirts.push(`${large.shirt_size}` === 'L'))
+console.log(largeShirts)
 
 // ==== Challenge 4: Use .reduce() ====
 // The donations need to be tallied up and reported for tax purposes. Add up all the donations into a ticketPriceTotal array and log the result
-let ticketPriceTotal = [];
-console.log(ticketPriceTotal);
+let ticketPriceTotal = []
+ticketPriceTotal = runners
+  .reduce((total, item) => total + item.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 solve 3 unique problems using one or many of the array methods listed above.
@@ -80,4 +94,4 @@ console.log(ticketPriceTotal);
 
 // Problem 2
 
-// Problem 3
+// Problem 3
diff --git a/assignments/callbacks.js b/assignments/callbacks.js
@@ -1,29 +1,61 @@
-const items = ['Pencil', 'Notebook', 'yo-yo', 'Gum'];
+const items = ['Pencil', 'Notebook', 'yo-yo', 'Gum']
 
 function firstItem(arr, cb) {
   // firstItem passes the first item of the given array to the callback function.
-}
+  cb(arr[0])
+};
+
+firstItem(items, length => {
+  console.log(`The first item in this array is ${length}.`)
+})
 
 function getLength(arr, cb) {
   // getLength passes the length of the array into the callback.
+  cb(arr.length)
 }
 
+getLength(items, lengthArray => {
+  console.log(`The length of the array is ${lengthArray}.`)
+})
+
 function last(arr, cb) {
   // last passes the last item of the array into the callback.
-}
+  cb(arr[arr.length - 1])
+};
+last(items, lastArrayItem => {
+  console.log(`Last item in the array is ${lastArrayItem}.`)
+})
 
 function sumNums(x, y, cb) {
   // sumNums adds two numbers (x, y) and passes the result to the callback.
-}
+  cb(x + y)
+};
+sumNums(2, 3, add => {
+  console.log(`Sum is ${add}.`)
+})
 
 function multiplyNums(x, y, cb) {
   // multiplyNums multiplies two numbers and passes the result to the callback.
-}
-
+  cb(x * y);
+};
+multiplyNums(5, 15, multiply => {
+  console.log(`The multiplication of the numbers is ${multiply}`)
+})
 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.
-}
+  const inArray = () => {
+    for (let i = 0; i < item.length; i++) {
+      if (item[i] === list) {
+        return true
+      }
+    } return false
+  }
+  cb(inArray())
+};
+contains(items, 'Gum', results => {
+  console.log(results ? 'Gum is in the array' : 'Gum is not in the array.')
+})
 
 /* STRETCH PROBLEM */
 

diff --git a/assignments/closure.js b/assignments/closure.js
@@ -1,11 +1,24 @@
 // ==== Challenge 1: Write your own closure ====
 // Write a simple closure of your own creation.  Keep it simple!
-
+let passed = 3
+var add = () => {
+  var inner = 1
+  return passed + inner
+}
+console.log(add())
 
 // ==== Challenge 2: Create a counter function ====
+// count = 0;
+// const counter = () => {
+//   // Return a function that when invoked increments and returns a counter variable.
+let count = 0
 const counter = () => {
-  // Return a function that when invoked increments and returns a counter variable.
-};
+  count++
+  return count
+}
+console.log(counter())
+const newCounter = counter()
+console.log(newCounter)
 // Example usage: const newCounter = counter();
 // newCounter(); // 1
 // newCounter(); // 2

diff --git a/assignments/function-conversion.js b/assignments/function-conversion.js
@@ -1,23 +1,32 @@
 // Take the commented ES5 syntax and convert it to ES6 arrow Syntax
 
 // let myFunction = function () {};
+let myFunction = () => {}
 
 // let anotherFunction = function (param) {
 //   return param;
 // };
-
+let anotherFunction = param => param
 // let add = function (param1, param2) {
 //   return param1 + param2;
 // };
 // add(1,2);
+let add = (param1, param2) => param1 + param2
+console.log(add(2, 3))
 
 // let subtract = function (param1, param2) {
 //   return param1 - param2;
 // };
 // subtract(1,2);
+let subtract = (param1, param2) => param1 - param2
+console.log(subtract(3, 2))
 
 // exampleArray = [1,2,3,4];
 // const triple = exampleArray.map(function (num) {
 //   return num * 3;
 // });
-// console.log(triple);
+// console.log(triple);
+let exampleArray = [1, 2, 3, 4]
+const triple = exampleArray
+  .map(num => num * 3)
+console.log(triple)