i have a div:
<div id="div"></div>
with
$("#div").append("<div id='c'></div>")
$("#c").length
returns 0. what i can do for find the div width id = c after inserted in div #div?
thanks
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5 Answers
It does work for me: http://jsfiddle.net/4Q4cM/
Maybe #div element isn't appended to DOM tree itself? E.g., you're doing $('<div id="div"></div>') instead of inserting it in the document. Nick Craver also has a good guess.
Comments
try doing:
$('div').append($('<div>').attr('id', 'c'))
Comments
What you have will work as long as you're running it in a document.ready handler, like this:
$(function() {
$("#div").append("<div id='c'></div>")
alert($("#c").length ); //alerts 1
});
You can test it here, without the .ready wrapper, if it runs before <div id="div"></div> is loaded in the DOM, that #div selector won't find anything, and so it won't append anything to the 0 elements it found.
Comments
First off, he div won't have a width until it contains some content. Try that.
2 Comments
David Thomas
I think you're misunderstanding the
length() property (in this case the 'length' is basically the number of elements found by the selector), whereas you seem to be confusing it with width.
fish2000
whoops. I did indeed miss that, sorry.
$("#div #c")
will find what you're looking for
1 Comment
Nick Craver
You should very rarely use a selector like this, an ID selector should only be
#id in almost every case. In this case it's not the issue.