Is there a way to set all checkboxes on a specific page (Wordpress, Woocommerce) to default to checked? [duplicate]

I have a variety of checkboxes in the Woocommerce checkout process that I would like to, by default, to set to checked. Unfortunately, the plugins I'm using don't really make that simple. Is there anyway through either some custom function or some script to automatically set all the checkboxes on a page to default to check on page load?