Shopping cart functionality is built-in, including persistence of the cart’s items to HTML5 localstorage. Beyond this, the pio.js API includes functions built to make interacting with the cart simple:
PIO.getCart()function returns an object that includes the items’ information such as productId, templateName, sku, and more.
PIO.getNumItems()function is sugar for
PIO.getCart().items.lengthto enable easy UI that shows the number of items in the cart.
PIO.clearCart()allows one to clear all items out of the cart.
fns.onCartChangecallback (that can be passed into either
PIO.open()options objects) will be called with every cart/item change. Its an easy way to trigger logic/UI updates when items change.
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