jQuery展开第一个ul> li> ul父级

Question

i have some jquery thats expanding/collapsing on click. i would like the first item to be expanded by default but im having trouble with the jquery. i've tried a few different angles to no avail. any help would be much appreciated!

http://jsfiddle.net/trrJp/1/

Answer 1

If your issue is only you want the first item to open, after you setup all the menu jquery you can do something like this:

$('#menu li:first').slideToggle();

Or you could simulate a click:

$('#menu li:first').click();

The actual code is dependent on your actual implementation and how you'd open it but the general idea is to trigger the first element to open.

Answer 2

You can keep the first item expanded by default with the following line

  $('#collapser li:first-child > ul').show();

What it does is selects the first li and then select the ul within that li and show that.

First Child Selector

Working Fiddle