Question:Which of the following is the correct way to debug JavaScript/jQuery event bindings with Firebug or a similar tool? 

A var clickEvents = $('#foo').data("events").click;
 jQuery.each(clickEvents, function(key, value) { 
console.log(value) // prints "function() { console.log('clicked!') }" 
}) 
B $.fn.listHandlers = function(events, outputFunction) { 
 return this.each(function(i){ 
 var elem = this, dEvents = $(this).data('events'); 
 if (!dEvents) {return;} 
 $.each(dEvents, function(name, handler){
 if((new RegExp('^(' + (events === '*' ? '.+' : events.replace(',','|').replace(/^on/i,'')) + ')$' ,'i')).test(name)) { $.each(handler, function(i,handler){ outputFunction(elem, '\n' + i + ': [' + name + '] : ' + handler ); }); 
 } 
  });
 }); 
}; 
C var clickEvents = $('#foo').data("events").click;
 jQuery.each(clickEvents, function(key, value) { event.console.log(value); 
}) 
D $.fn.listHandlers = function(events, outputFunction) { 
return this.each(function(i){ 
var elem = this, dEvents = $(this).data('events'); 
 $.each(dEvents, function(name, handler){
 if((new RegExp('^(' + (events === '*' ? '.+' : events.replace(',','|').replace(/^on/i,'')) + ')$' ,'i')).test(name)) { $.each(handler, function(i,handler){ outputFunction(elem, '\n' + i + ': [' + name + '] : ' + handler ); 
 }); 
} 
}); 
}); 
}; 

+ Answer
A 

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Mohammad Towhidul Islam

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