Actually didn't know toggle took a boolean argument, cheers, I'll probably end up using that.

But it's not just that. You've got to account for stuff like updating classes on elements, updating text (e.g you might have a dropdown and when you change that dropdown it updates a summary bar), managing configuration of various components on a page (like options within a select dropdown, available dates in a date picker) etc. etc.

All becomes a lot easier using something like React/Vue and they even throw in dev tools to make it easier furthermore.