In jquery how to get a matching element with a defined property(attribute) value -


below jquery code, want li has data-target="5". loop not enter in if condition if there li data-target="5". 

var target = 5; $("ul.menu-content li.collapsed").each(function() {   if ($(this).is('[data-target]') == target) {     $(this).removeclass('collapsed').find('a').addclass('active');   } });

you need data-target using .data(key) , compare value.

if($(this).data('target') == target)

or, can directly use attribute value selector , code can improved as

$("ul.menu-content li.collapsed[data-target=" + target+"]")   .removeclass('collapsed')   .find('a')   .addclass('active');

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