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JQuery MCQs

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

var clickEvents = $('#foo').data("events").click; jQuery.each(clickEvents, function(key, value) { console.log(value) // prints "function() { console.log('clicked!') }" })

$.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 ); }); } }); }); };

var clickEvents = $('#foo').data("events").click; jQuery.each(clickEvents, function(key, value) { event.console.log(value); })

$.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

Correct Answer: var clickEvents = $('#foo').data("events").click; jQuery.each(clickEvents, function(key, value) { console.log(value) // prints "function() { console.log('clicked!') }" })

Explanation:

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