组织对象原型的更好方法是什么？

Question

这是我如何尝试组织原型：

但是，我必须编写额外的“方法”属性来访问原型的功能是相当低效的。

var Gallery = function(name) { 
    this.name = name; 
} 

Gallery.prototype.methods = { 
    activeCnt: 0, 
    inc: function() { 
     this.activeCnt++; 
    }, 
    dec: function() { 
     this.activeCnt--; 
    }, 
    talk: function() { 
     alert(this.activeCnt); 
    } 
} 


var artGallery = new Gallery('art'); 
var carGallery = new Gallery('car'); 
artGallery.methods.inc(); 
artGallery.methods.talk(); 
carGallery.methods.talk();​ 

Answer 1

只需卸下methods属性，并指定新对象的Gallery的prototype对象。另外请确保它有一个名为constructor的房产，该房源指向Gallery。代码如下：

var Gallery = function (name) { 
    this.name = name; 
} 

Gallery.prototype = { 
    activeCnt: 0, 
    inc: function() { 
     this.activeCnt++; 
    }, 
    dec: function() { 
     this.activeCnt--; 
    }, 
    talk: function() { 
     alert(this.activeCnt); 
    }, 
    constructor: Gallery 
}; 


var artGallery = new Gallery('art'); 
var carGallery = new Gallery('car'); 

artGallery.inc(); 
artGallery.talk(); 
carGallery.talk();