Build a random building from an array of possibilities

random-building.js

var cottage = function(){
    console.log("Building a cottage.");
};

var mansion = function(){
    console.log("Building a mansion.");
};

var buildings = [cottage, mansion];

while(buildings.length > 0){
    var choice = Math.floor(Math.random() * buildings.length);
    //replace this line with a function that builds a building
    buildings[choice]();
    buildings.splice(choice, 1);
}