5-7-19 Javascript II project

README.md

@@ -7,47 +7,47 @@ With some basic JavaScript principles in hand, we can now expand our skills out
 
 **Follow these steps to set up and work on your project:**
 
-* [ ] Create a forked copy of this project.
-* [ ] Add your project manager as collaborator on Github.
-* [ ] Clone your OWN version of the repository (Not Lambda's by mistake!).
-* [ ] Create a new branch: git checkout -b `<firstName-lastName>`.
-* [ ] Implement the project on your newly created `<firstName-lastName>` branch, committing changes regularly.
-* [ ] Push commits: git push origin `<firstName-lastName>`.
+* [x ] Create a forked copy of this project.
+* [x ] Add your project manager as collaborator on Github.
+* [ x] Clone your OWN version of the repository (Not Lambda's by mistake!).
+* [x ] Create a new branch: git checkout -b `<firstName-lastName>`.
+* [ x] Implement the project on your newly created `<firstName-lastName>` branch, committing changes regularly.
+* [x ] Push commits: git push origin `<firstName-lastName>`.
 
 **Follow these steps for completing your project.**
 
-* [ ] Submit a Pull-Request to merge <firstName-lastName> Branch into master (student's  Repo). **Please don't merge your own pull request**
-* [ ] Add your project manager as a reviewer on the pull-request
-* [ ] Your project manager will count the project as complete by merging the branch back into master.
+* [x ] Submit a Pull-Request to merge <firstName-lastName> Branch into master (student's  Repo). **Please don't merge your own pull request**
+* [x ] Add your project manager as a reviewer on the pull-request
+* [x ] Your project manager will count the project as complete by merging the branch back into master.
 
 ## Task 2: Higher Order Functions and Callbacks
 
 This task focuses on getting practice with higher order functions and callback functions by giving you an array of values and instructions on what to do with that array.
 
-* [ ] Review the contents of the [callbacks.js](assignments/callbacks.js) file.  Notice you are given an array at the top of the page.  Use that array to aid you with your functions.
+* [ x] Review the contents of the [callbacks.js](assignments/callbacks.js) file.  Notice you are given an array at the top of the page.  Use that array to aid you with your functions.
 
-* [ ] Complete the problems provided to you but skip over stretch problems until you are complete with every other JS file first.
+* [x ] Complete the problems provided to you but skip over stretch problems until you are complete with every other JS file first.
 
 ## Task 3: Array Methods
 
 Use `.forEach()`, `.map()`, `.filter()`, and `.reduce()` to loop over an array with 50 objects in it. The [array-methods.js](assignments/array-methods.js) file contains several challenges built around a fundraising 5K fun run event.
 
-* [ ] Review the contents of the [array-methods.js](assignments/array-methods.js) file.  
+* [x ] Review the contents of the [array-methods.js](assignments/array-methods.js) file.  
 
-* [ ] Complete the problems provided to you but skip over stretch problems until you are complete with every other JS file first.
+* [ x] Complete the problems provided to you but skip over stretch problems until you are complete with every other JS file first.
 
-* [ ] Notice the last three problems are up to you to create and solve.  This is an awesome opportunity for you to push your critical thinking about array methods, have fun with it.
+* [x ] Notice the last three problems are up to you to create and solve.  This is an awesome opportunity for you to push your critical thinking about array methods, have fun with it.
 
 ## Task 4: Closures
 
 We have learned that closures allow us to access values in scope that have already been invoked (lexical scope).  
 
 **Hint: Utilize debugger statements in your code in combination with your developer tools to easily identify closure values.**
 
-* [ ] Review the contents of the [closure.js](assignments/closure.js) file.  
-* [ ] Complete the problems provided to you but skip over stretch problems until you are complete with every other JS file first.
+* [x ] Review the contents of the [closure.js](assignments/closure.js) file.  
+* [x ] Complete the problems provided to you but skip over stretch problems until you are complete with every other JS file first.
 
 ## Stretch Goals
 
-* [ ] Go back through the stretch problems that you skipped over and complete as many as you can.
-* [ ] Look up what an IIFE is in JavaScript and experiment with them
+* [x ] Go back through the stretch problems that you skipped over and complete as many as you can.
+* [ x] Look up what an IIFE is in JavaScript and experiment with them

assignments/array-methods.js

@@ -1,4 +1,5 @@
-// A local community center is holding a fund raising 5k fun run and has invited 50 small businesses to make a small donation on their behalf for some much needed updates to their facilities.  Each business has assigned a representative to attend the event along with a small donation.
+// A local community center is holding a fund raising 5k fun run and has invited 50 small businesses to make a small donation on their behalf for some much needed updates to their facilities.  
+//Each business has assigned a representative to attend the event along with a small donation.
 
 // Scroll to the bottom of the list to use some advanced array methods to help the event director gather some information from the businesses.
 
@@ -55,29 +56,128 @@ const runners = [{"id":1,"first_name":"Charmain","last_name":"Seiler","email":"c
 
 // ==== 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);
+
+// let fullName = [];
+// for (let i = 0; i < runners.length; i++) {
+//     fullName.push(runners[i].first_name + " " + runners[i].last_name)
+// }
+// console.log(fullName)
+
+
+let fullName2 = []
+runners.forEach(runner =>  fullName2.push(`${runner.first_name} ${runner.last_name}`))
+console.log(fullName2);
+
+
+let fullName4 = []
+runners.forEach(addName)
+
+function addName(word){
+    fullName4.push(`${word.first_name} ${word.last_name}`)
+}
+
+console.log(fullName4)
+
+
 
 // ==== 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 = [];
+let allCaps = runners.map(allCapMode)
+
+function allCapMode (words) {
+    return words.first_name.toUpperCase()
+    // allCaps.push(`${wubba.first_name}`)
+}
+
+
+
+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 = [];
+// 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 = runners.filter(shirts).map(names)
+
+function shirts(words){
+if (words.shirt_size === "L") {
+    return true
+}
+else {
+    return false
+}
+}
+
+function names(xxx) {
+    return xxx.first_name + " - " + xxx.shirt_size
+}
+
 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 = [];
+
+
+
+ let ticketPriceTotal = runners.reduce(sums, 0)
+
+function sums(x, y) {
+    return x + y.donation
+}
+
 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.
+// 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
 
+//use map to list donation amounts
+
+let newDonations = runners.map(tally)
+
+function tally (jolly) {
+    return jolly.donation
+}
+
+console.log(newDonations)
+
 // Problem 2
 
-// Problem 3
+// use map to scrape the array to sell people's information - our customer needs first name, last name, and email addresses
+
+
+let cashflow = []
+runners.forEach(dollars)
+
+function dollars (cash) {
+    cashflow.push(`To: ${cash.email} <br><br> Hello, Mr or Ms ${cash.first_name} ${cash.last_name}, we have an exciting offer for you today`)
+}
+
+console.log(cashflow)
+
+// Problem 3
+// Our research shows only people who work at companies that donated over $150 fall for this.  
+// Filter them out, then give us an organized list of the their names, emails, and how much they gave. 
+// We don't need their shirt size
+
+let suckers = runners.filter(haha).map(dollaBillsRain)
+
+function haha(lol) {
+    if (lol.donation > 150)
+    return lol.first_name + lol.last_name + lol.email + lol.donation
+}
+
+function dollaBillsRain (payday) {
+    return (`${payday.first_name} ${payday.last_name} - ${payday.email} - $${payday.donation}`)
+}
+
+console.log(suckers)
+
+
+

assignments/callbacks.js

@@ -1,4 +1,5 @@
-// Create a higher order function and invoke the callback function to test your work. You have been provided an example of a problem and a solution to see how this works with our items array.  Study both the problem and the solution to figure out the rest of the problems.
+// Create a higher order function and invoke the callback function to test your work. You have been provided an example of a problem and a solution to see how this works with our items array.  
+//Study both the problem and the solution to figure out the rest of the problems.
 
 const items = ['Pencil', 'Notebook', 'yo-yo', 'Gum'];
 
@@ -20,36 +21,93 @@ const items = ['Pencil', 'Notebook', 'yo-yo', 'Gum'];
   // Function invocation 
   firstItem(items, function(first) {
     console.log(first)
+
+
   });
 
 */
 
 
 function getLength(arr, cb) {
   // getLength passes the length of the array into the callback.
+  return cb(arr.length)
 }
 
 function last(arr, cb) {
   // last passes the last item of the array into the callback.
+  cb(arr.length - 1)
 }
 
 function sumNums(x, y, cb) {
   // sumNums adds two numbers (x, y) and passes the result to the callback.
+  let z = x + y;
+  cb(z);
 }
 
+
+
 function multiplyNums(x, y, cb) {
   // multiplyNums multiplies two numbers and passes the result to the callback.
+  let z = x * y;
+  cb(z)
+}
+console.log(multiplyNums(5, 10, ert))
+//function ert below shows 50 properly in quokka, but console log above is showing undefined
+function ert (g){
+  console.log(g)
 }
 
-function contains(item, list, cb) {
+function contains(items, 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 (list.includes(items).toString());
+};
+  console.log(contains('Pencil', items));
+
+  // Previous solution I was working on ------
+
+  // item.map(sums)
+  // function sums(x){}
+  // if (x.item === x.list){
+  //   cb(true)
+  // }
+
+  //   else {
+  //     cb(false)
+  //   }
+  // }
 
 /* STRETCH PROBLEM */
 
 function 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.
+
+  //----Previous attempt-----------
+//   let newArray = items.filter(reduction)
+
+//   function reduction(xxx) {
+//     if (xxx.value !== xxx.value) {
+//       return true
+//     } 
+//     console.log(newArray);
+
+
+// function test() {
+//     if (newArray.value == array.value) {
+//     return true
+//     }
+//   }
+
+// }
+// }
 }
+
+
+let notDupe = items.filter((item, index) => {
+  return items.indexOf(item) >= index;
+});
+
+console.log(notDupe);

assignments/closure.js

@@ -2,6 +2,25 @@
 // Write a simple closure of your own creation.  Keep it simple!
 
 
+
+
+{
+  let a = 2
+}
+
+console.log(a)
+//nothing
+
+{
+  let b = 2;
+  return b
+}
+
+console.log(b);
+//b = 2
+
+
+
 /* STRETCH PROBLEMS, Do not attempt until you have completed all previous tasks for today's project files */
 
 
@@ -13,6 +32,8 @@ const counter = () => {
 // newCounter(); // 1
 // newCounter(); // 2
 
+
+
 // ==== Challenge 3: Create a counter function with an object that can increment and decrement ====
 const counterFactory = () => {
   // Return an object that has two methods called `increment` and `decrement`.