var
div
=
$
(
"div"
)
,
p
=
$
(
"<p />"
)
.
appendTo
(
div
)
;
div.
data
(
"p"
,
p
)
.
click
(
handler
)
;
function
handler
(
event
)
{
// much faster
$
(
this
)
.
data
(
"p"
)
.
css
(
"margin-top"
,
100
)
;
// than this
$
(
this
)
.
children
(
"p"
)
.
css
(
"margin-top"
,
100
)
;
}