refactured functions to be arrow functions

jrizza88 · jrizza88 · commit 2f627d534ac5 · 2018-11-09T20:13:04.000-05:00
diff --git a/assignments/array-methods.js b/assignments/array-methods.js
@@ -61,8 +61,9 @@ const runners = [{"id":1,"first_name":"Charmain","last_name":"Seiler","email":"c
 let fullName = [];
 console.log(fullName);
 
- runners.forEach(function(getNames){
-       let names = getNames.first_name + " " + getNames.last_name;
+ runners.forEach((getNames) => {
+       // let names = getNames.first_name + " " + getNames.last_name;
+       let names = `${getNames.first_name} ${getNames.last_name}`
        fullName.push(names)
  });
 
@@ -121,7 +122,7 @@ console.log(totalPrices2)
     //          emailInfo.push(racer.email)
     //    }
 
-       runners.forEach(function(racer){
+       runners.forEach((racer) => {
         emailInfo.push(racer.email)
        })
 
diff --git a/assignments/callbacks.js b/assignments/callbacks.js
@@ -26,41 +26,41 @@ const items2 = ['Pencil', 'Notebook', 'yo-yo', 'Gum', 'Gum', 'yarn', 'yo-yo' ];
 
 */
 console.log(`********* callback.js challenges *********`)
-function getLength(arr, cb) {
+const getLength = (arr, cb) => {
   // getLength passes the length of the array into the callback.
    return cb(arr.length)
 }
 
-getLength(items, function(theLength){
+getLength(items, (theLength) => {
   console.log("getLength function: ", theLength)
 })
 
-function last(arr, cb) {
+const last = (arr, cb) => {
   // last passes the last item of the array into the callback.
   return cb(arr.length - 1)
 }
 
-last(items, function(lastItem){
+last(items, (lastItem) =>{
   console.log(`lastItem function: ${lastItem}`);
   console.dir(lastItem);
 })
 
 
-function sumNums(x, y, cb) {
+const sumNums = (x, y, cb) => {
   // sumNums adds two numbers (x, y) and passes the result to the callback.
   return cb(x + y);
 }
 
-sumNums(3, 4, function(sum){
+sumNums(3, 4, (sum) => {
   console.log('the sum is: ', sum)
 })
 
-function multiplyNums(x, y, cb) {
+const multiplyNums = (x, y, cb) => {
   return cb(x * y)
   // multiplyNums multiplies two numbers and passes the result to the callback.
 }
 
-multiplyNums(3, 4, function(mult){
+multiplyNums(3, 4,(mult) => {
   console.log("the multiplied value is: ", mult)
 })
 
@@ -72,7 +72,7 @@ multiplyNums(3, 4, function(mult){
 
 // multiplyNums(2, 4, multiplying)
 
-function contains(item, list, cb) {
+const 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)
@@ -81,7 +81,7 @@ function contains(item, list, cb) {
 }
 
 // researched "includes" method from MDN
-function inventory(item, list){
+const inventory = (item, list) =>{
   return list.includes(item)
 }
 
@@ -100,14 +100,14 @@ function inventory(item, list){
 
 /* STRETCH PROBLEM */
 
-function removeDuplicates(array, cb) {
+const removeDuplicates = (array, cb) => {
   // removeDuplicates removes all duplicate values from the given array.
   // Pass the duplicate free array to the callback function.
   // Do not mutate the original array.
   return cb(array)
 }
 
-function removeThem(array){
+const removeThem =(array) =>{
   return array.filter(function(item, index){
     return array.indexOf(item) >= index;
   });
@@ -118,4 +118,4 @@ function removeThem(array){
 
 // created duplicate items array to check if it worked
     removeDuplicates(items2, removeThem)
-    console.log("Removed duplicates from array of items2:", removeDuplicates(items2, removeThem))
+    console.log("Removed duplicates from array of items2:", removeDuplicates(items2, removeThem))
diff --git a/assignments/closure.js b/assignments/closure.js
@@ -14,23 +14,8 @@ const  whoIsThatPokemon = () => {
           espeon()
 }
 
-// function whoIsThatPokemon2 () {
-//   let pokemon = "Pikachu"
-//       console.log(pokemon)
-   
-//       espeon()
-//         function espeon () {
-//           pokemon = "Espeon";
-//            console.log(pokemon);
-    
-//         }
-// }
 
 whoIsThatPokemon()
-// whoIsThatPokemon2()
-
-// console.log(whoIsThatPokemon);
-// console.log(whoIsThatPokemon2());
 
 
 // ==== Challenge 2: Create a counter function ====
@@ -77,5 +62,12 @@ const counterFactory = () => {
   // `decrement` should decrement the counter variable and return it.
 };
 const counter2 = counterFactory();
-console.log(counter2.increment(3))
+
+counter2.increment()
 counter2.increment()
+
+console.log(counter2.increment())
+
+counter2.decrement()
+
+console.log(counter2.decrement())
