Question

hasClass is useful when I want to check if the element has some class. I want to do the same check for some other attribute. For example, I use

<div id="nav" data-available-for="users administrators guests"></div>

and want to check if this div is available for users. So, I would do it like

$('#nav').hasAttributeValue('data-available-for', 'users')

Are there any existing beautiful tiny solutions for this?

Answer 1

There is no need to explode strings or use indexOf. jQuery has a complete set of css-selectors build in and so you can use attribute-selectors.

you can combine .is() and attribute-selectors:

if( $('#nav').is('[data-available-for~="users"]') ) { ..

http://api.jquery.com/category/selectors/

http://api.jquery.com/attribute-contains-word-selector/