Getting List Column Order

I'm using the SharePoint 2013 JavaScript APIs, calling web.get_lists().getByTitle('ListTitle') and then list.get_fields() to create a custom search panel. However, the fields do not come back based on the column ordering set in the list settings. Is there a way to get to the column order value via JavaScript? I've seen examples for setting, but none for reading it. Thanks in advance for your help.