From e93b955df41ddb85013e2eb2170b55205c726262 Mon Sep 17 00:00:00 2001
From: Aurelio De Rosa This method is a shortcut for The .on( "focusout", handler )
when passed arguments, and .trigger( "focusout" )
when no arguments are passed.focusout
event is sent to an element when it, or any element inside of it, loses focus. This is distinct from the blur event in that it supports detecting the loss of focus on descendant elements (in other words, it supports event bubbling).