获取模型类型的传递Backbone.js的模型实例 [英] Get the model type for a passed in backbone.js model instance

问题描述

我如何为Backbone.js的模型实例检索模型名称？

How do I retrieve the model name for a backbone.js model instance?

例如：

var Topic = Backbone.Model.extend({

})
var topic = new Topic({ type: 'question' })

var doSomethingWithTopic = function(topic) {
  // check if passed in topic is of type Topic
  // something like topic.constructor.name === 'Topic'
}

doSomethingWithTopic(topic)

我意识到我可能是一个模糊Backbone.js的模型和类之间的界限，所以我打开的如果需要的话要对这个其他方式。

I realize I may be blurring the line between a backbone.js model and a class, so I am open to other ways of going about this if needed.

推荐答案

使用的instanceof 运营商。

var doSomethingWithTopic = function(topic) {
  if( topic instanceof Topic ) {
    // do something with topic
  }
}

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