Code snippets for ThoughtWorks Team Hug presentation - comparing JavaScript and CoffeeScript (part 2)

6a-return-from-conditional.js

var textColor;

if (result === "failed") {
    textColor = "red";
} else if (result === "not run") {
    textColor = "yellow";
} else {
    textColor = "green";
}

6b-return-from-conditional.coffee

textColor =
  if result is "failed"
    "red"
  else if result is "not run"
    "yellow"
  else
    "green"

7a-global-variables.js

var teamHugPresentationList = [ "CoffeeScript", "Whiskey", "Consulting"];

var whoopsie = function() {
    teamHugPresentationList = [];
    return teamHugPresentationList;
}

7b-global-variables.coffee

teamHugPresentationList = [ "CoffeeScript", "Whiskey", "Consulting"]

whoopsie ->
	teamHugPresentationList = []
	teamHugPresentationList

8a-javascript-classes-example-1.js

var TeamHugPresentation = function(title, presenter) {
    return {
        getHeadline: function() {
            return title + " by " + presenter;
        }
    }
};

var myPresentation = TeamHugPresentation("CoffeeScript", "Jo Cranford");

8b-javascript-classes-example-2.js

var TeamHugPresentation = function(title, presenter) {

    this.getHeadline = function() {
        return title + " by " + presenter;
    };

};

var myPresentation = new TeamHugPresentation("CoffeeScript", "Jo Cranford");

8c-javascript-classes-example-3.js

var TeamHugPresentation = function(title, presenter) {
    this.title = title;
    this.presenter = presenter;
};

TeamHugPresentation.prototype.getHeadline = function() {
    return this.title + " by " + this.presenter;
};

var myPresentation = new TeamHugPresentation("CoffeeScript", "Jo Cranford");

8d-coffeescript-classes.coffee

class TeamHugPresentation

  constructor: (@title, @presenter) ->

  getHeadline: ->
    @title + " " + @presenter

9a-for-loop.coffee

weatherInCities = 
(("#{city.name}: #{city.weather}") for city in listOfCities)

9a-for-loop.js

var i, weatherInCities;
weatherInCities = [];

for(i = 0; i < listOfCities.length; i++) {
	var city = listOfCities[i];
	weatherInCities.push(city.name + ":" + city.weather);
}