Bohdan Zhuravel

January 22, 2012 at 9:52pm

CoffeeScript solutions

http://www.codeschool.com/courses/coffeescript

Level 1

Challenge 1/7 : Variable Assignment

person = "Bohdan"

Challenge 2/7 : Functions

greet = -> alert "Hello CoffeeScript"

Challenge 3/7 : Functions II

greet = (argument) ->
  alert argument

Challenge 4/7 : Functions III

greet = (argument1, argument2) ->
  alert argument1 + " " + argument2

Challenge 5/7 : Functions IV

greet = (name='Stranger') ->
  alert name

Challenge 6/7 : Functions V

greet = (name='Stranger') ->
  "Hello, #{name}"

Challenge 7/7 : Sum Function

sum = (argument1, argument2) ->
  return argument1 + argument2

jQuery Air: Captain’s Log solutions

http://www.codeschool.com/courses/jquery-air-captains-log

Level 1

Challenge 1/12 : HTML Value

$('ol.economy-class li.row:first li:first').html();

Challenge 2/12 : Text Value

$('ol.economy-class li.row:first li:first a').text();

Challenge 3/12 : Text Value II

$('ol.economy-class li.row:eq(1) li:eq(3)').html();

Challenge 4/12 : Attributes

$('ol.economy-class li.row:eq(1) li:eq(3) a').attr('href');

Challenge 5/12 : Data Attributes

$('ol.economy-class li.row:eq(1) li:eq(3) a').data('seat');

Challenge 6/12 : Click Event

$('div.seating-chart a.available').click(selectSeat);
function selectSeat(event) {
  event.preventDefault();
  $('.selected').removeClass('selected');
  $(this).addClass('selected');
}

Challenge 7/12 : Bind Click Event

$('div.seating-chart a.available').bind({
  click: selectSeat
});

Challenge 8/12 : Using Data Attributes

function selectSeat(e) {
  e.preventDefault();
  $('.selected').removeClass('selected');
  $(this).addClass('selected');
  $('#seatSelected').text($(this).data('seat'));
  $('div#confirm-seat').show();
}

$('div.seating-chart li a.available').click(selectSeat);

Challenge 9/12 : Unbind Event

function selectSeat(e) {
  e.preventDefault();
  $('.selected').removeClass('selected').bind('click', selectSeat);
  $(this).addClass('selected').unbind('click', selectSeat);
  $('#seatSelected').text($(this).data('seat'));
  $('#confirm-seat').show();
}

$('div.seating-chart li a.available').click(selectSeat);

Challenge 10/12 : Multiple Click Handlers

$('div.seating-chart ol.first-class li a.available').click(selectFirstClass);
$('div.seating-chart ol.economy-class li a.available').click(selectSeat);

Challenge 11/12 : Live

$('#confirm-first-class a.confirm-upgrade').live('click', confirmUpgrade);

Challenge 12/12 : Delegate

$("#confirm-first-class").delegate("a.confirm-upgrade", "click", confirmUpgrade);

jQuery Air: First Flight solutions

http://www.codeschool.com/courses/jquery-air-first-flight

Level 1

Challenge 1/13 : Creating Variables

var flight = 16;

Challenge 2/13 : Fixing Common Errors

var flight = 232;
var pilot  = "Steeley Dan";
var weight = 367.5;

Challenge 3/13 : The Alert Dialog

alert("Prepare for takeoff!");

Challenge 4/13 : Write a Confirm Dialog - Part I

confirm("Turn on the fasten seatbelt sign?");

Challenge 5/13 : Write a Confirm Dialog - Part II

var belts = confirm("Turn on the fasten seatbelt sign?");
alert("Seatbelts: " + belts);

Challenge 6/13 : The Prompt Dialog

var headCount = prompt("How many passengers do we have?");
alert("We have " + headCount + " passengers today.");

Challenge 7/13 : Working with Data - Part I

var totalSeats = 130;
var headCount = prompt("How many passengers do we have?");
parseInt(headCount);
var empty = totalSeats - headCount;
alert("There are " + empty + " seats remaining");

Challenge 8/13 : Working with Data - Part II

var headCount = prompt("How many passengers do we have?");
headCount = parseInt(headCount);
var averageWeight = prompt("What's the average weight?");
parseFloat(averageWeight);
var totalWeight = headCount * averageWeight;
alert("Total passenger weight is about " + totalWeight + " pounds");

Challenge 9/13 : String Manipulation - Part I

var pilotName = "Shirley Rumack";
pilotName = pilotName.toUpperCase();

Challenge 10/13 : String Manipulation - Part II

var flightSummary = "Flight 603: PHX to LAX";
var flightSummary = "Flight 603: PHX to LAX".replace("603", "754");

Challenge 11/13 : Arrays - Part I

var flights = ["603", "754", "256"];

Challenge 12/13 : Arrays - Part II

var today = ["603", "754", "256"];
var yesterday = ["893", "923", "664", "232", "499"];
var flights = yesterday.length - today.length;
alert("Yesterday there were " + flights + " more flights than today");

Challenge 13/13 : Arrays - Part III

var flights = ["603", "754", "256"];
var gates = [26, 27, 28];
alert("Flight " + flights[2] + " departs from Gate " + gates[2]);