Javascript event bubble instance analysis
This example describes the javascript event bubbling. Share it with you for your reference. The specific analysis is as follows:
Event bubbling:
If element A is nested in element B, The onclick event of A is triggered, and The onclick event of B is also triggered,
The trigger sequence is "from the inside out". Verification: Add a table on the page, with tr in the table, td in tr, and p in td,
Add Event Response in p, td, tr, table
?
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 |
<Html xmlns = "http://www.w3.org/1999/xhtml"> <Head> <Meta http-equiv = "Content-Type" content = "text/html; charset = UTF-8"/> <Title> event bubbling </title> </Head> <Body onclick = "alert ('body click');"> <Table onclick = "alert ('table click');"> <Tr onclick = "alert ('tr click');"> <Td onclick = "alert ('td click');"> <Input type = "button" value = "Click me" Onclick = "alert ('button click');"/> </Td> </Tr> </Table> </Body> </Html> |
I hope this article will help you design javascript programs.