javascript - How to get length of elements with a certain css attribute? - Stack Overflow

If i have an html snippet

<div>
     <ul style="display:block">
         <li>A</li>
         <li>B</li>
     </ul>
     <ul style="display:none">
         <li></li>
         <li></li>
     </ul>
</div>

How to use jQuery to find the no. of ul elements in div with a css property of display: none? I know I can use $('div').children('ul').length but this returns all ul elements

If i have an html snippet

<div>
     <ul style="display:block">
         <li>A</li>
         <li>B</li>
     </ul>
     <ul style="display:none">
         <li></li>
         <li></li>
     </ul>
</div>

How to use jQuery to find the no. of ul elements in div with a css property of display: none? I know I can use $('div').children('ul').length but this returns all ul elements

• javascript
• jquery
• css

Share Improve this question Follow edited Dec 3, 2013 at 19:32 ComFreek 29.4k1818 gold badges107107 silver badges157157 bronze badges asked Dec 3, 2013 at 19:30 AdityaAditya 26055 silver badges1313 bronze badges

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3 Answers 3

Sorted by: Reset to default 5

You can use :hidden selector, if you want to get the length of hidden uls. It will take care of the ones with display:none set. And similarly you have the :visible selector as well.

$('div').children('ul:hidden').length

Elements can be considered hidden for several reasons:

• They have a CSS display value of none.
• They are form elements with type="hidden".
• Their width and height are explicitly set to 0.
• An ancestor element is hidden, so the element is not shown on the page.

You can filter for specific CSS values with a simple filter :

$('div ul').filter(function() {
    return this.style.display === 'none';
}).length

You should be able to use the :visible tag to find all the visible lists and then do $('ul:visible').length or :hidden for the opposite to find the length.