javascript ko.mapping 未定义
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ko.mapping is undefined
提问by kekewong
im following this example http://jsfiddle.net/rniemeyer/badZb/. I just copy and paste the exact code into a sample application and it gave me this error : "ko.mapping is undefined" . Anyone know whats happening? My ko.observable and dependentObservable are working great, is just that ko.mapping is not working.
我正在关注这个例子http://jsfiddle.net/rniemeyer/badZb/。我只是将确切的代码复制并粘贴到示例应用程序中，它给了我这个错误：“ko.mapping is undefined”。有谁知道发生了什么？我的 ko.observable 和dependentObservable 工作得很好，只是 ko.mapping 不起作用。
FYI : The knockout.js version is 2.0 and Jquery 1.7.1
仅供参考：knockout.js 版本是 2.0 和 Jquery 1.7.1
回答by James Allardice
As the mapping plugin is exactly that, a plugin, it is not included in the core library.
由于映射插件正是插件，它不包含在核心库中。
You need to include the mapping pluginseparately. You can find it on GitHub. Just make sure you include it after including the core Knockout library.
