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March 17, 2011 at 12:29 pm #11052
john-smith
ParticipantI have a
<div>
that has many other<div>
s within it, each at a different nesting level. Rather than give every child<div>
an identifier, I rather just give the root<div>
the identifier. Here’s an example:<div class="a" id="a5"> <div class="b"> <div class="c"> <a class="d"> </a> </div> </div> </div>
If I write a function in jQuery to respond to class
d
and I want to find the ID for its parent, classa
, how would I do this?I cannot simply do
$('.a').attr('id');
, because there are multiple classa
s. I could find its parent’s parent’s parent’s ID but that seems of poor design, slow, and not very polymorphic (I would have to write different code for finding the ID for classc
).March 17, 2011 at 12:30 pm #11057drew-noakes
ParticipantPass a selector to the jQuery parents function:
d.parents('.a').attr('id')
EDIT Hmm, actually Slaks’s answer is superior if you only want the closest ancestor that matches your selector.
March 17, 2011 at 12:31 pm #11058slaks
ParticipantAssuming that
this
is.d
, you can write$(this).closest('.a');
The
closest
method returns the innermost parent of your element that matches the selector.March 17, 2011 at 12:33 pm #11055amr-elgarhy
ParticipantYou can use parents() to get all parents with the given selector.
Description: Get the ancestors of each
element in the current set of matched
elements, optionally filtered by a
selector.But parent() will get just the first parent of the element.
Description: Get the parent of each
element in the current set of matched
elements, optionally filtered by a
selector.And there is .parentsUntil() which I think will be the best.
Description: Get the ancestors of each
element in the current set of matched
elements, up to but not including the
element matched by the selector.July 23, 2018 at 5:49 am #11053jai3232
ParticipantUse .parentsUntil()
$(".d").parentsUntil(".a");
May 26, 2020 at 11:34 am #11056anjana-silva
ParticipantExtracted from @Resord’s comments above. This one worked for me and more closely inclined with the question.
$(this).parent().closest('.a');
Thanks
November 2, 2020 at 1:31 am #11054huy
Participant<div id="412412412" class="input-group date"> <div class="input-group-prepend"> <button class="btn btn-danger" type="button">Button Click</button> <input type="text" class="form-control" value=""> </div> </div>
In my situation, i use this code:
$(this).parent().closest('.date').attr('id')
Hope this help someone.
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