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4 changes: 4 additions & 0 deletions assignments/array-methods.js
Original file line number Diff line number Diff line change
Expand Up @@ -56,21 +56,25 @@ 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(arr => fullName.push(`${arr.first_name} ${arr.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 = [];
runners.map(arr => allCaps.push(arr.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 = [];
let largeShirts = runners.filter((array) => (array.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 = [];
runners.reduce((ticketPriceTotal, runner) => ticketPriceTotal + runner.donation, 0);
console.log(ticketPriceTotal);

// ==== Challenge 5: Be Creative ====
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2 changes: 2 additions & 0 deletions assignments/callbacks.js
Original file line number Diff line number Diff line change
Expand Up @@ -24,7 +24,9 @@ const items = ['Pencil', 'Notebook', 'yo-yo', 'Gum'];

function getLength(arr, cb) {
// getLength passes the length of the array into the callback.
return cb(arr.length);
}
getLength(items, length => console.log(length));

function last(arr, cb) {
// last passes the last item of the array into the callback.
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14 changes: 14 additions & 0 deletions assignments/closure.js
Original file line number Diff line number Diff line change
@@ -1,11 +1,25 @@
// ==== Challenge 1: Write your own closure ====
// Write a simple closure of your own creation. Keep it simple!
const closure = "Example";
function example (){
return closure;
}
example();


// ==== Challenge 2: Create a counter function ====
const counter = () => {
let num =0;

function increment() {
num++;
return num;
}
return increment
// Return a function that when invoked increments and returns a counter variable.
};
let count = counter();
console.log(count());
// Example usage: const newCounter = counter();
// newCounter(); // 1
// newCounter(); // 2
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2 changes: 2 additions & 0 deletions assignments/index.html
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Expand Up @@ -15,5 +15,7 @@

<body>
<h1>JS II - Check your work in the console!</h1>


</body>
</html>