jquery mobile event multiple binding sample code_jquery

Newbies, new to js, ​​html, css, jq are constantly having trouble

Copy the code The code is as follows:

$(document).on("pageinit",function(){

$("XXX").bind()

})

This binding method will bind an event of xxx once every pageinit of the entire document. When will the pageinit event be triggered? For details on how to solve it, please see the link
http://rubiks. ph/jquery-mobile-events-firing-multiple-times/
My English is not good, I can only barely understand it.