Content Card Types for Web
Requesting Unviewed Content Card Count for Web
You can request the number of unread cards at any time by calling:
This is often used to power badges signifying how many unread content cards there are. See the JSDocs for more information.
Key Value Pairs
ab.Card objects may optionally carry key value pairs as
extras. These can be used to send data down along with a card for further handling by the application. Call
card.extras to access these values.