Javascript 尝试创建Backbone.js视图子类时出错
我的backbone.js视图如下:Javascript 尝试创建Backbone.js视图子类时出错,javascript,ruby-on-rails-3.1,backbone.js,coffeescript,Javascript,Ruby On Rails 3.1,Backbone.js,Coffeescript,我的backbone.js视图如下: class MyApplication.Views.Cake extends Backbone.View tagName: 'li' className: 'cake' 以及尝试的子类 class MyApplication.Views.AwesomeCake extends MyApplication.Views.Cake 但是,在javascript控制台中,对子类抛出以下错误: Uncaught TypeError: Cannot
class MyApplication.Views.Cake extends Backbone.View
tagName: 'li'
className: 'cake'
以及尝试的子类
class MyApplication.Views.AwesomeCake extends MyApplication.Views.Cake
但是,在javascript控制台中,对子类抛出以下错误:
Uncaught TypeError: Cannot read property 'prototype' of undefined
我发现我的问题是Rails 3.1和资产管道的问题。由于sprockets按字母顺序加载javascript文件,而且awesome_cake出现在cake之前,所以我需要超类文件
#= require ./cake
class MyApplication.Views.AwesomeCake extends MyApplication.Views.Cake
有问题的解决办法:
我发现我的问题是Rails 3.1和资产管道的问题。由于sprockets按字母顺序加载javascript文件,而且awesome_cake出现在cake之前,所以我需要超类文件
#= require ./cake
class MyApplication.Views.AwesomeCake extends MyApplication.Views.Cake
有问题的解决办法:
确实如此!一个常见的问题的确一个常见的问题