javascript高级知识点——继承

function Person(){} function Ninja(){} 
 
Ninja.prototype = new Person(); 
 
var ninja = new Ninja(); 
console.log( ninja instanceof Ninja, "ninja自动接收Ninja.prototype里的属性" ); 
console.log( ninja instanceof Person, "也是来自Person.prototype" ); 
console.log( ninja instanceof Object, "也是来自and the Object prototype" );

function Person(){} 
Person.prototype.getName = function(){ 
  return this.name; 
}; 
 
function Me(){ 
  this.name = "John Resig"; 
} 
Me.prototype = new Person(); 
 
var me = new Me(); 
console.log( me.getName());