Question

I need to .slideToggle() two div simultaneous.

In order to do it, I used .add() to add the elements into array and apply .slideToggle() on both of them in the same time.

When I tested my code I figured something works suspiciously.

I went down to the bottom of the problem and I was able to figure that the .add() caused the problem – no Idea why.

Anyway, here’s jsfiddle so you can see what I am talking about (you need to change the javascript to test both [the right way and the bugged one]).

Generally I can use the working method but I really want to understand why the .add() doesn’t work as it should…

Answer 1

You’re passing changeItems as callback only on one call in the working example.

And you’re calling it twice by using jQuery.add and then slideToggle.