js default event canceled

1. To prevent the event capture and bubbling

　　  　　: Sub-class event will be issued the same type of parent events,

　　　　　　 w3c standard a method window.event.stopPropagation also an event object (Event), the role is to prevent the target element bubbling event, but will not prevent the default behavior.

　　　　　　IE is used window.event..cancelBubble = true

 

　　2. prevent the default event (a jump label ,, type = submit submitted  when the Event object cancelable false, indicating that there is no default behavior, then even if there is a default behavior, call the preventDefault also will not work .)

　　　　w3c method is the window.event. the preventDefault (),

　　　　IE is the use of the window.event. .ReturnValue = to false;

　　

　　3.jQuery usage

　　　　Prevent the default event  return false does not stop bubbling 

　　　　　　 <a href="http://www.baidu.com" onclick="return false">llll</a>

 

　　　　jQuery　return false; prevent the default event and event bubbling

　　　 $("#testC").on('click',function(){
　　　　　　return false;
　　　 });