40 lines
988 B
Markdown
40 lines
988 B
Markdown
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---
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title: Add Methods After Inheritance
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localeTitle: Añadir métodos después de la herencia
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---
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## Añadir métodos después de la herencia
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### Método
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Al igual que en el ejemplo siguiente, se debe crear una nueva instancia de un objeto, `Dog` , y se debe configurar el `prototype` .
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```javascript
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function Bird() { }
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Bird.prototype = Object.create(Animal.prototype);
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Bird.prototype.constructor = Bird;
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```
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Luego se debe agregar una nueva función - `bark()` - al prototipo Dog.
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### Solución
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```javascript
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function Animal() { }
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Animal.prototype.eat = function() { console.log("nom nom nom"); };
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function Dog() { }
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// Add your code below this line
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Dog.prototype = Object.create(Animal.prototype);
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Dog.prototype.constructor = Dog;
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Dog.prototype.bark = function() {
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console.log("Woof woof!");
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};
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// Add your code above this line
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let beagle = new Dog();
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beagle.eat(); // Should print "nom nom nom"
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beagle.bark(); // Should print "Woof!"
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```
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