For help on the event object!

  node.js, question
 document.onclick = javscriptHandle;
 $(document).on('click', jqueryHandle);
 function javscriptHandle(event){
 Log ('javascript:' plus event');
 function jqueryHandle(event){
 Log ('jquery:' plus event');

It means that the event in jquery event handler has been processed by jquery, can it be cross-browser?

Yes,jQueryForeventObject handles browser differences
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