asd

Functional Sharing

function extend(a, b){
    for(var key in b)
        if(b.hasOwnProperty(key))
            a[key] = b[key];
    return a;
}

var Dog = function(name,breed,age,happiness,hunger,energy) {
  var obj = {}
  obj.name = name
  obj.breed = breed
  obj.age = age
  obj.happiness = happiness
  obj.hunger = hunger
  obj.energy = energy
  extend(obj,Dog.methods)
  return obj
}

Dog.methods = {
  
  feed : function(food) {
  if(this.hunger - food > 0) {
  this.hunger -= food;
  } else {
  this.hunger = 0;
    }
  
  },

  play : function(time) {
   if(this.happiness + time < 100) {
  this.happiness += time;
  } else {
  this.happiness = 100;
  }

  if(this.energy - time > 0) {
  this.energy -= time;
  } else {
  this.energy = 0;
    }
  },
 

 nap : function(time) {
   if(dog.energy + time < 100) {
  dog.energy += time;
  } else {
  dog.energy = 100;
  }
 }




}

var newDog = Dog('Bob','hotdog',12,'happy',50,50)
newDog.feed(4)
newDog

Original

const dog = {
name: 'Scout',
breed: ['Husky', 'German Shepherd'],
age: 4,
happiness: 50,
hunger: 10,
energy: 100,
};

dog['feed'] = function (food) {
if(dog.hunger - food > 0) {
  dog.hunger -= food;
} else {
  dog.hunger = 0;
}
}

dog['play'] = function(time) {
if(dog.happiness + time < 100) {
  dog.happiness += time;
} else {
  dog.happiness = 100;
}

if(dog.energy - time > 0) {
  dog.energy -= time;
} else {
  dog.energy = 0;
}
}

dog['nap'] = function(time) {
if(dog.energy + time < 100) {
  dog.energy += time;
} else {
  dog.energy = 100;
}
}

Prototypal

var Dog = function(name,breed,age,happiness,hunger,energy) {
  var obj = Object.create(Dog.prototype)
  obj.name = name
  obj.breed = breed
  obj.age = age
  obj.happiness = happiness
  obj.hunger = hunger
  obj.energy = energy
 
  return obj
}


  
  Dog.prototype.feed = function(food) {
  if(this.hunger - food > 0) {
  this.hunger -= food;
  } else {
  this.hunger = 0;
    }
  
  },

  Dog.prototype.play = function(time) {
   if(this.happiness + time < 100) {
  this.happiness += time;
  } else {
  this.happiness = 100;
  }

  if(this.energy - time > 0) {
  this.energy -= time;
  } else {
  this.energy = 0;
    }
  },
 

 Dog.prototype.nap = function(time) {
   if(dog.energy + time < 100) {
  dog.energy += time;
  } else {
  dog.energy = 100;
  }
 }

Pseudoclassical

var Dog = function(name,breed,age,happiness,hunger,energy) {
  
  this.name = name
  this.breed = breed
  this.age = age
  this.happiness = happiness
  this.hunger = hunger
  this.energy = energy
 
}


  
  Dog.prototype.feed = function(food) {
  if(this.hunger - food > 0) {
  this.hunger -= food;
  } else {
  this.hunger = 0;
    }
  
  },

  Dog.prototype.play = function(time) {
   if(this.happiness + time < 100) {
  this.happiness += time;
  } else {
  this.happiness = 100;
  }

  if(this.energy - time > 0) {
  this.energy -= time;
  } else {
  this.energy = 0;
    }
  },
 

 Dog.prototype.nap = function(time) {
   if(dog.energy + time < 100) {
  dog.energy += time;
  } else {
  dog.energy = 100;
  }
 }






var newDog = new Dog('Bob','hotdog',12,'happy',50,50)
newDog.feed(4)
newDog