zoo.js

//------------------------------------------------------------------------------------------------------------------
// YOUR CODE: Create your Zoo "object literal" and Animal "constructor" and "prototypes" here.
//------------------------------------------------------------------------------------------------------------------
var Animal = function(name, numberOfLegs){
  function animalName() {
    return animal.animalName.toString;
  };

  function indentify() {
    if (animalName = "Human" && animal.numberOfLegs == 2);
      alert("I am a Human with 2 legs.");
  };

legs = numberOfLegs


var Zoo = function(animals){
  var totalBipeds = [];
  var totalQuadrupeds = [];
};

Zoo.prototype.bipeds(){
  for each (animal in animals);
    if (animal.numberOfLegs == 2);
    total_bipeds.push(animal.name);
}

Zoo.prototype.quadrupeds() {
  for each (animal in animals);
    if (animal.numberOfLegs == 4);
    total_bipeds.push(animal.name);
}




//  bear = new Animal("Bear", 4) constructor
//------------------------------------------------------------------------------------------------------------------
// DRIVER CODE: Do **NOT** change anything below this point. Your task is to implement code above to make this work.
//------------------------------------------------------------------------------------------------------------------

function assert(test, message) {  
  if (!test) {
    throw "ERROR: " + message;
  }
  return true;
}

var animals = [
  new Animal("Human", 2),
  new Animal("Monkey", 2),
  new Animal("Kangaroo", 2),
  new Animal("Horse", 4),
  new Animal("Cow", 4),
  new Animal("Centipede", 100)
];

Zoo.init(animals);

assert(
  Zoo.bipeds().length === 3, "the Zoo should have 3 bipeds"
);
assert(
  Zoo.quadrupeds().length === 2, "the Zoo should have 2 bipeds"
);
assert(
  animals[0].identify() === "I am a Human with 2 legs.", "humans have 2 legs"
);
assert(
  animals[2].name === "Kangaroo", "expected 'Kangaroo'"
);
assert(
  animals[0].identify === animals[5].identify, "only one implementation of the identify() function should exist"
);