How woocommecre attributes work?

Question

WooCommerce

Prompt please. Can attributes exist separately without variation? Let's say there is 150 g of the product and 250 g so that you can click and it is gone with the order

Answer 1

Attributes in the database and in the system exist separately from the product. But they are universal product characteristics.
There may be an attribute 150gr., 200gr. ... but they do not identify the product by themselves. Those. 150gr. could be anything. But in conjunction, they determine the variation.
If you display just a list of attributes, and the user clicks on 150gr., then what product is 150gr. should go to order?

Answer 2

Maybe it's https://developer.chrome.com/apps/app_storage