JQuery - How to check if element is array or single

jQuery 1.7.1

Sometimes I have an element as an array,

<tr><td><input type="hidden" class="p" name="it" value="1"/></td></tr>
<tr><td><input type="hidden" class="p" name="it" value="2"/></td></tr>


Below is the jQuery code,



Sometime I have this item as one item

<tr><td><input type="hidden" class="p" name="it" value="1"/></td></tr>


I want to make sure the hidden input is an array or a single element before trying the above jQuery code. How can I do this using jQuery?


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3 answers

Actually, this code works great for both single input and two inputs.

But use the method size

to check:

if ($(".p").size() > 1) {




You can check the length

jQuery returned set.

var p = $('.p');
if ( p.length == 1 )
    // single
else if ( p.length > 1 )
    // set


But this, I believe, is not your problem. Your jQuery code shouldn't reload $('.p')

on every iteration. Try this - it will work with one or more elements:





The result of a DOM query is always a jQuery object. It cannot be one element. $(".p").length

will tell you the number of elements in the returned object, which can be 0 if the query did not match any objects.



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