farm2.js

function Andy(animal) {
    switch (animal.type) {
        case 'meerkat':
            Bob(animal);
            break;
        case 'ostrich':
            Carol(animal);
            break;
        case 'snake':
            Donald(animal);
            break;
    }

    Elton(animal);
}

function Bob(animal) {
    addEarTag(animal);
}

function Carol(animal) {
    addInnerEarTag(animal);
}

function Donald(animal) {
    sprayPaintLogo(animal);
}

function Elton(animal) {
    addHat(animal, animal.male ? 'blue' : 'pink');
}

function Fiona() {
    while (1) {
        var animal = catchAnAnimal();
        if (!animal.hasBeenProcessed) {
            Andy(animal);
            animal.hasBeenProcessed = true;
        }
    }
}