JavaScript面向对象编程（11）其他继承方式

1、将父对象作为新对象的原型

function object(o) {
var n;
function F() {}
F.prototype = o;
n = new F();
n.uber = o;
return n;
}

var shape = {
name: 'Shape',
toString: function(){
if(this.uber)
return this.uber.toString() + ', ' + this.name;
else
return this.name;
}
}
var twoDShape = object(shape);
twoDShape.name = "2 D Shape";
alert(twoDShape.toString());

2、在子构造器中调用父构造器Parent.apply();并传递参数，这样与父对象的this绑定的属性同时成为子对象的属性
function Shape(id) {
this.id = id;

}
Shape.prototype.name = 'shape';
Shape.prototype.toString = function(){return this.name;};

function Triangle() {
Shape.apply(this, arguments);//原生属性继承
}