Get number of elements in a JQuery Sortable list

Question

The API of JQuery Sortable isn't clear on how to retrieve the number of elements in a sortable list. The reason I want the number of elements, is because I want to set the position of a widget to the end of the sortable list. I know there is an append function, but I have my own logic to manipulate the sortable list.

Does someone know how to do this?

score 6 · Accepted Answer · edited Jul 15 '13 at 22:05

6

This should do it:

$('#sortable li').length;

since $(foo) returns either a jQuery object or an array of jQuery objects, depending on the selector foo, you can use the .length attribute.

edited Jul 15 '13 at 22:05

Taryn

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answered Jan 10 '13 at 09:50

Zim84

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I would like to thank everyone for their help. I used this answer and it worked fine:) – John Hendrik Jan 10 '13 at 10:16

score 3 · Answer 2 · answered Jan 10 '13 at 09:46

3

you could use toArray method and check the length of the result array

answered Jan 10 '13 at 09:46

Dziad Borowy

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I like this method because my sortable is using divs, not li elements. I could use a version ofZim84's answer above with $("#sortable div").length, but why not let the sortable function keep track of its own child length. So -- $("#" + divID).sortable("toArray").length works for me. – jomofrodo Sep 15 '14 at 23:46

score 2 · Answer 3 · answered Jan 10 '13 at 09:47

I think this might not be implemented in the jQuery sortable plugin (I haven't checked though), because just standard jQuery can count your list items.

for example:

var count = $("#myList li).length

gets you the number of records in the list <ul id="myList">

Get number of elements in a JQuery Sortable list

3 Answers3