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thomasstephane/zoo.js

Forked from dbc-challenges/zoo.js
Last active December 17, 2015 16:28
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Revisions

  1. thomasstephane revised this gist May 23, 2013. 1 changed file with 40 additions and 5 deletions.
    45 changes: 40 additions & 5 deletions zoo.js
    View file
    Original file line number Diff line number Diff line change
    @@ -1,20 +1,55 @@
    //------------------------------------------------------------------------------------------------------------------
    // YOUR CODE: Create your Zoo "object literal" and Animal "constructor" and "prototypes" here.
    //------------------------------------------------------------------------------------------------------------------
    function Animal(name, legs) {
    this.legs = legs;
    this.name = name;
    }

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

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

    bipeds: function(){
    var bipeds = [];

    for (i = 0; i < (this.animals.length - 1); i++ ) {
    if (this.animals[i].legs === 2)
    bipeds.push(this.animals[i]);
    }
    return bipeds;
    },

    quadrupeds: function(){
    var bipeds = [];
    for (i = 0; i < (this.animals.length - 1); i++ ) {
    if (this.animals[i].legs === 4)
    bipeds.push(this.animals[i]);
    }
    return bipeds;
    }
    };



    //------------------------------------------------------------------------------------------------------------------
    // 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),
    @@ -23,9 +58,9 @@ var animals = [
    new Animal("Cow", 4),
    new Animal("Centipede", 100)
    ];

    Zoo.init(animals);

    assert(
    Zoo.bipeds().length === 3, "the Zoo should have 3 bipeds"
    );
    @@ -40,4 +75,4 @@ assert(
    );
    assert(
    animals[0].identify === animals[5].identify, "only one implementation of the identify() function should exist"
    );
    );
  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"
    );