Javascript prevents event bubbling and default browser behavior, javascript bubbling

Source: Internet
Author: User

Javascript prevents event bubbling and default browser behavior, javascript bubbling

1. Prevent event bubbling and make it a capturing event trigger mechanism.

Function stopBubble (e) {// if an event object is provided, this is a non-IE browser if (e & e. stopPropagation) // Therefore, it supports the W3C stopPropagation () method e. stopPropagation (); else // otherwise, we need to use IE to cancel the event bubble window. event. cancelBubble = true ;}

2. When you do not want to pass the button to an HTML text box object, you can cancel the return value, that is, stop the default event behavior.

// Block the default behavior of the browser function stopDefault (e) {// block the default browser action (W3C) if (e & e. preventDefault) e. preventDefault (); // else window that blocks the default action of the function in IE. event. returnValue = false; return false ;}
<! DOCTYPE html PUBLIC "-// W3C // dtd xhtml 1.0 Transitional // EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 

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