required fields on add to cart

Is there a built-in FC way to require/validate fields when an item is added to the cart? I found this, but it's for v1.7 and I'm running v2.0.

https://wiki.foxycart.com/snippets/form_field_validation?s[]=basic&s[]=form&s[]=validation&s[]=jquery

Or am I better off just using a regular jquery method?
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