骨干事件没有触发关闭方法

Question

骨干事件事件执行后仍束缚，object.off触发

PFB的代码

var object = _.extend({}, Backbone.Events); 

object.off('app:test:load', function() { 
    console.log("========my foot======="); 
}, this); 
object.on('app:test:load', function() { 
    //fn calls 
}); 

object.trigger('app:test:load'); 

所有的心思都欢迎抽象后不执行，谢谢提前。

Answer 1

我认为你是在谈论僵尸对象将在本德里克解释贝利，后

http://lostechies.com/derickbailey/2011/09/15/zombies-run-managing-page-transitions-in-backbone-apps/

这意味着，有你的代码的某些部分，这是不是一个引用通过关闭方法删除。

Answer 2

没有与此代码的多个问题，因为它提出：

• 关闭方法被称为之前功能被注册，所以它是可以理解的，该触发器将调用日志或其他呼叫
• 匿名函数传递给。匿名功能可与不同的倍率的仅移除掉功能
• 此被送入关闭，对于写在这样的方式代码，此将指向父对象（可能甚至窗口），所以代码实际上将尝试从一些其他的东西删除回调，不对象

工作实例可能脱落在这个问题上的一些光：

// create object which support events 
var object = _.extend({}, Backbone.Events); 

// define function as non-anonymous 
var doAction = function() { 
    console.log("========my foot======="); 
}; 

// function has to be registered first (cannot remove something that is not there) 
object.on('app:test:load', doAction); 

// register another function to illustarate removal of anonymous functions 
object.on('app:test:load', function(){ 
    console.log("from anonymous"); 
}); 

// will invoke both functions 
object.trigger('app:test:load'); 

// example 1: only remove this particular function for this particular trugger 
object.off('app:test:load', doAction); 

// will invoke only anonymous, since first one was removed 
object.trigger('app:test:load'); 

// example 2: only remove ALL registered functions for this trigger 
object.off('app:test:load'); 

// will not write anything 
object.trigger('app:test:load');