javascript学习

2015/4/2

1.Object.create

https://msdn.microsoft.com/zh-cn/library/ff925952

Animal = Object.create(Object);
Animal.getName = function() {
  return this.name;
};

Dog = Object.create(Animal);
Dog.speak = function() {
  return "woof";
};

var dog = Object.create(Dog);
dog.name = "Scamp";
console.log(dog.getName() + ' says ' + dog.speak());

 我的理解：相当于是new的作用。但是比通过构造函数的方式创建对象来的慢（效率低）。