select2 force focus on page load

According to the Select2 documentation:

$('#id').select2('open');

Should be all you need.

Found under the Programmatic Access section in the documentation.

If you use:

$('#id').select2('open');

The select2 is opened and you can type directly for searching.

If you use:

$('#id').select2('open').select2('close');

The focus is set to the created select2 dropdownlist. If you hit Enter or Ctrl + Arrow down on your keyboard, you can open it.

Is personally think this is better than:

$('#id').select2('focus');

because you can't really open the select2 dropdownlist with your keyboard.

This works in release 3.4.2. Not sure when it was implemented exactly.

$('#id').select2('focus');