骨干本地存储"未定义不是函数"

Question

我正在使用Backbone.LocalStorage:http://jsfiddle.net/jiewmeng/grhz9/3/

$(function() {
    console.log(Backbone.LocalStorage); // undefined!!
    var Todo = Backbone.Model.extend({});
    var Todos = Backbone.Collection.extend({
        model: Todo,
        localStorage: new Backbone.LocalStorage("todos")
    });
});?

第一个console.log()给出undefined.然后在该localStorage: ...行出错

未捕获的TypeError:undefined不是函数

预计既然Backbone.LocalStorage是undefined为什么呢？

Answer 1

在backbone.localStorage-min.js你加载:

http://cdnjs.cloudflare.com/ajax/libs/backbone-localstorage.js/1.0/backbone.localStorage-min.js

看起来它已经过时了,根本没有定义Backbone.LocalStorage.backbone.localStorage-min.js您正在使用的版本定义window.Store而不是Backbone.LocalStorage.如果你切换到那个(http://jsfiddle.net/ambiguous/grhz9/5/):

var Todos = Backbone.Collection.extend({
    model: Todo,
    localStorage: new Store("todos")
});

然后你可以过去建立你的Todos收藏.我不知道当你真正尝试使用它时,事情会有多好."Sun Aug 14 2011 09:53:55 -0400"在互联网时代已经很久以前了,因此版本相当古老.

如果您从Github切换到最新版本:

https://raw.github.com/jeromegn/Backbone.localStorage/master/backbone.localStorage-min.js

你会发现JavaScript中存在一些差异,当你使用时,一切都将开始工作new Backbone.LocalStorage('todos'):

http://jsfiddle.net/ambiguous/grhz9/4/