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Novshiel vidal #1

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9aacfab
Complete closure.js and work on array-methods.js
novshiel Oct 9, 2019
5b7651a
Complete Challenges 1, 3, 4, 5 of array-methods.js. Still need to fix…
novshiel Oct 9, 2019
a2f0580
Complete Challenge 2, array-methods.js
novshiel Oct 9, 2019
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31 changes: 20 additions & 11 deletions assignments/array-methods.js
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Expand Up @@ -57,29 +57,38 @@ const runners = [

// ==== 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 and populate a new array called `fullNames`. This array will contain just strings.
let fullNames = [];
console.log(fullNames);

let fullNames = runners.map((runner) => runner.first_name + " " + runner.last_name)
console.log(fullNames.sort());

// ==== Challenge 2: Use .map() ====
// The event director needs to have all the runners' first names in uppercase because the director BECAME DRUNK WITH POWER. Populate an array called `firstNamesAllCaps`. This array will contain just strings.
let firstNamesAllCaps = [];
let firstNamesAllCaps = runners.map((runner) => runner.first_name.toUpperCase())
console.log(firstNamesAllCaps);

// ==== Challenge 3: Use .filter() ====
// The large shirts won't be available for the event due to an ordering issue. We need a filtered version of the runners array, containing only those runners with large sized shirts so they can choose a different size. This will be an array of objects.
let runnersLargeSizeShirt = [];
console.log(runnersLargeSizeShirt);

let runnersLargeSizeShirt = runners.filter((runner) => runner.shirt_size === 'L')
console.log(JSON.stringify(runnersLargeSizeShirt, null, 4));
// ==== Challenge 4: Use .reduce() ====
// The donations need to be tallied up and reported for tax purposes. Add up all the donations and save the total into a ticketPriceTotal variable.
let ticketPriceTotal = 0;
console.log(ticketPriceTotal);
let ticketPriceTotal = runners.map((runner) => runner.donation);
let reducer = (accumulator, currentValue) => accumulator + currentValue;
console.log(ticketPriceTotal.reduce(reducer));

// ==== 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.

// Problem 1

// Problem 2
// Problem 1: List runners' companies
let companyNames = runners.map((runner) => runner.company_name)
console.log(companyNames);


// Problem 2: Donations per company
let companyDonate = runners.map((runner) => runner.company_name + " " + runner.donation)
console.log(companyDonate);

// Problem 3
// Problem 3: All runners with size M shirts
let mShirt = runners.filter((shirt) => shirt.shirt_size === 'M')
console.log(JSON.stringify(mShirt, null, 4));
2 changes: 1 addition & 1 deletion assignments/callbacks.js
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Expand Up @@ -39,7 +39,7 @@ const items = ['Pencil', 'Notebook', 'yo-yo', 'Gum'];
*/


function getLength(arr, cb) {
function getLength(items, cb) {
// getLength passes the length of the array into the callback.
}

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8 changes: 8 additions & 0 deletions assignments/closure.js
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Expand Up @@ -4,6 +4,14 @@
// that manipulates variables defined in the outer scope.
// The outer scope can be a parent function, or the top level of the script.

let num1 = Number(prompt('Pick a number'));
let num2 = Number(prompt('Pick a number'));

function subtractNums(num1, num2) {
return num1 - num2;
}
console.log(subtractNums(num1, num2));


/* STRETCH PROBLEMS, Do not attempt until you have completed all previous tasks for today's project files */

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