William VanDolah

assignments/array-methods.js

@@ -56,28 +56,78 @@ 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 = [];
+runners.forEach(function(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 = [];
+let allCaps = runners.map((cRunnerInfo) =>{
+    return cRunnerInfo.first_name.toUpperCase()
+});
+// allCaps.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 = [];
+let largeShirts = runners.filter((cRunnerInfo) =>{ //filter takes 3 params, ist is the current item, second is the index of that item, third is the entire Aaray
+    return cRunnerInfo.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 ticketPriceTotal = runners.reduce((donatedAmount, cRunnerInfo, i, fullRunnerArray) => {  //filter takes 4 params. The last 3 are the same as map and filter. The first is the outcome(this is like the 'values' on a pivot table)
+    return donatedAmount += cRunnerInfo.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.
 
 // Problem 1
 
+let emails = []
+runners.forEach(function(i) {
+	emails.push(i.email);
+})
+console.log(emails);
+
+
 // Problem 2
+//This doesn't work yet
+
+
+let shirtSizeCount = {
+    "small": 0,
+    "med":0,
+    "large":0
+}
+let smallShirt = [];
+
+runners.forEach(function(i){
+    if(i.shirt_size === "S"){
+        // smallShirt.push(i.first_name)
+        shirtSizeCount.small++     
+    }else if(i.shirt_size === "M"){
+        shirtSizeCount.med++ 
+    }else if(i.shirt_size === "L"){
+        shirtSizeCount.large++ 
+    }
+
+})
+
+console.log(shirtSizeCount)
+console.log(smallShirt)
+// Problem 3
+
+//find people that work for Skinix
+
+let skinixEmp = runners.filter((current) =>{
+    return current.company_name === 'Skinix'
+})
+
+console.log(skinixEmp)
 
-// Problem 3

assignments/closure.js

@@ -1,19 +1,52 @@
 // ==== Challenge 1: Write your own closure ====
 // Write a simple closure of your own creation.  Keep it simple!
+let name = "William VanDolah";
+let greeting = () => `Hello ${name}`
+console.log(greeting());
+
 
 
 // ==== Challenge 2: Create a counter function ====
-const counter = () => {
+const counter = function() {
   // Return a function that when invoked increments and returns a counter variable.
+  let counting = 1;
+  return function(){
+    return counting++
+  }
 };
+console.log(counter())
+
+const newCounter = counter();
+console.log(newCounter())
+console.log(newCounter())
+console.log(newCounter())
+console.log(newCounter())
+console.log(newCounter())
+
 // Example usage: const newCounter = counter();
 // newCounter(); // 1
 // newCounter(); // 2
 
 
 // ==== Challenge 3: Create a counter function with an object that can increment and decrement ====
+// let counting = 1
 const counterFactory = () => {
   // Return an object that has two methods called `increment` and `decrement`.
   // `increment` should increment a counter variable in closure scope and return it.
   // `decrement` should decrement the counter variable and return it.
-};
+  let counting = 1;
+  return {
+  	"increment": () => counting++,
+  	'decrement': () => counting--,
+  }
+}
+
+factoryCounter = counterFactory();
+console.log(factoryCounter.increment());
+console.log(factoryCounter.increment());
+console.log(factoryCounter.increment());
+console.log(factoryCounter.increment());
+console.log(factoryCounter.decrement());
+console.log(factoryCounter.decrement());
+console.log(factoryCounter.decrement());
+console.log(factoryCounter.decrement());

assignments/function-conversion.js

@@ -1,23 +1,37 @@
 // 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;
+
+console.log(anotherFunction("soda"))
 
 // let add = function (param1, param2) {
 //   return param1 + param2;
 // };
 // add(1,2);
 
-let subtract = function (param1, param2) {
-  return param1 - param2;
-};
-subtract(1,2); //?
+let add = (param1, param2) => param1 + param2;
+
+console.log(add(1,2));
+
+// let subtract = function (param1, param2) {
+//   return param1 - param2;
+// };
+// console.log(subtract(1,2)); 
+
+let subtract = (x,y) => {
+  return x-y;
+}
+console.log(subtract(1,2));
 
 exampleArray = [1,2,3,4];
-// const triple = exampleArray.map(function (num) {
-//   return num * 3;
-// });
-// console.log(triple);
+const triple = exampleArray.map(function (num) {
+  return num * 3;
+});
+console.log(triple);