Question about select all H3 inside DIV

Wouldn't this work if I want to apply a new class to all H3 tags inside the RelArtik 开发者_C百科div?

$("h3",$("#RelArtik")).addClass("underrubrik");

Thanks.

According to the documentation jQuery should accept a jQuery object as the context so there's no obvious reason why what you've written shouldn't work.

However, it also says that:

$(selector, context)

is equivalent to:

$(context).find(selector)

So you could just try:

$('#RelArtik').find('h3').addClass(...);

which is of course also equivalent to:

$('#RelArtik h3').addClass(...);

however I believe the former .find() based solution is faster.

it's the same as CSS and would work with a descendant selector

$("#RelArtik h3").addClass("underrubrik");

Alternatively you can just do:

$('#RelArtik h3').addClass('underrubrik');