Backbone.js event bind 新功能 listenTo and stopListening

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之前寫了一篇 Backbone.js Event 事件介紹,簡介 Backbone.js Events 如何使用 onoff 來處理事件,在升級 Backbone 到 0.9.9 過程中,其中一項重大新功能就是 Backbone listenTo and stopListening,大家來看看 Change logs:
Added listenTo and stopListening to Events. They can be used as inversion-of-control flavors of on and off, for convenient unbinding of all events an object is currently listening to. view.remove() automatically calls view.stopListening().
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