JQuery retrieving index on hasClass

Question

Is it possible to get the index on the first instance of a hasClass?

For Example:

$(".class").children().hasClass('classname').index();

Unfortunately this doesn't work.

Answer 1

.hasClass returns a boolean, you can filter the results of .children to those that have the classname-class and then get the index:

$(".class").children(".classname").index();