Update numeric quantity of product defaut

[patmanami]

Is there any way to override the default quantity of 1 with a buybutton that immediately sends a product to the Shopify cart? I'd like to override the value of the product quantity, and do not see an easy way to do this without using events (product updateQuantity, cart UpdateItemQuantity) of the DOM function. If it can only be done with those functions, please provide an example as I can't seem to find that information anywhere on github, slack, codepen or other. Thanks much!