Fred Sohn

assignments/array-methods.js

@@ -56,28 +56,36 @@ 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);
+runners.forEach((i) => fullName.push(i.first_name + " " + i.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); 
+runners.map((i) => allCaps.push(i.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);
+largeShirts = runners.filter((i) => (i.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 = [];
+let initialValue = 0;
+ticketPriceTotal.push(runners.reduce((acc, currentValue) => acc + currentValue.donation , initialValue))
 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.
 
 // Problem 1
+// Count the instances of people working at the same company. (More than one company: Wordtune 2, Gigashots 2, Skinte 2, Skinix 3, Kwimbee 2)
 
 // Problem 2
+// Combine the ids and emails
 
-// Problem 3
+// Problem 3
+// Alphebatize the runners based on last name

assignments/callbacks.js

@@ -1,3 +1,4 @@
+/* SKIP */
 const items = ['Pencil', 'Notebook', 'yo-yo', 'Gum'];
 
 function firstItem(arr, cb) {

assignments/closure.js

@@ -1,14 +1,28 @@
 // ==== Challenge 1: Write your own closure ====
 // Write a simple closure of your own creation.  Keep it simple!
+let dog = 'English Bulldog'
+function house (where) {
+  let cat = 'Maine';
+  dog = 'Corgi'; 
+  return dog + where
+};
 
+  dog = 'Labrador';
+//console.log(cat);
+//console.log(house(' in the house'));
 
 // ==== Challenge 2: Create a counter function ====
 const counter = () => {
   // Return a function that when invoked increments and returns a counter variable.
+  let add= 0;
+  return () => (++add);
 };
 // Example usage: const newCounter = counter();
 // newCounter(); // 1
 // newCounter(); // 2
+const newCounter = counter();
+newCounter();
+newCounter();
 
 
 // ==== Challenge 3: Create a counter function with an object that can increment and decrement ====

assignments/function-conversion.js

@@ -2,22 +2,42 @@
 
 // let myFunction = function () {};
 
+let myFunction = () => {};
+
 // let anotherFunction = function (param) {
 //   return param;
 // };
 
+let anotherFunction = param => param;
+console.log(anotherFunction(1));
+
 // let add = function (param1, param2) {
 //   return param1 + param2;
 // };
 // add(1,2);
 
-let subtract = function (param1, param2) {
+let add = (param1, param2) => param1 + param2;
+console.log(add(1, 2));
+
+// New Problem
+
+let subtract = function(param1, param2) {
   return param1 - param2;
 };
-subtract(1,2); //?
+subtract(1, 2); //?
 
-exampleArray = [1,2,3,4];
+//Answer
+
+subtract = (param1, param2) => param1 - param2;
+console.log(subtract(5, 1));
+
+// New Problem
+
+exampleArray = [1, 2, 3, 4];
 // const triple = exampleArray.map(function (num) {
 //   return num * 3;
 // });
-// console.log(triple);
+// console.log(triple);
+
+const triple = exampleArray.map(num => num * 3);
+console.log(triple);