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mthoover1/zoo.js

Forked from dbc-challenges/zoo.js
Last active December 18, 2015 11:19
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Revisions

  1. mthoover1 revised this gist Jun 13, 2013. 1 changed file with 36 additions and 0 deletions.
    36 changes: 36 additions & 0 deletions zoo.js
    View file
    Original file line number Diff line number Diff line change
    @@ -2,6 +2,42 @@
    // YOUR CODE: Create your Zoo "object literal" and Animal "constructor" and "prototypes" here.
    //------------------------------------------------------------------------------------------------------------------

    var Zoo = {
    init : function(animals) {
    this.animals = animals;
    },

    bipeds : function(){
    var animals = this.animals;
    var bipeds = [];
    for (var i in animals) {
    if (animals[i].legs === 2) {
    bipeds.push(animals[i]);
    };
    };
    return bipeds
    },

    quadrupeds : function(){
    var animals = this.animals;
    var quadrupeds = [];
    for (var i in animals) {
    if (animals[i].legs === 4) {
    quadrupeds.push(animals[i]);
    };
    };
    return quadrupeds
    }
    };

    function Animal(name, legs) {
    this.name = name;
    this.legs = legs;
    };

    Animal.prototype.identify = function() {
    return "I am a " + this.name + " with " + this.legs + " legs."
    };


    //------------------------------------------------------------------------------------------------------------------
  2. @dbc-challenges dbc-challenges created this gist May 1, 2013.
    43 changes: 43 additions & 0 deletions zoo.js
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,43 @@
    //------------------------------------------------------------------------------------------------------------------
    // YOUR CODE: Create your Zoo "object literal" and Animal "constructor" and "prototypes" here.
    //------------------------------------------------------------------------------------------------------------------



    //------------------------------------------------------------------------------------------------------------------
    // 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"
    );