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Redux Ecosystem Quiz Practice
Active Recall Drill Session
← Exit Session
Question 1 of 1
hard
Redux Ecosystem
A reducer adds a new entity to `entities` but forgets to also push its ID into the `ids` array. What's the observable bug?
A
The app crashes immediately
B
The entity exists and is directly look-up-able by ID, but never appears in any UI that renders a list by iterating `ids`
C
The entity is duplicated
D
Nothing — ids and entities are automatically kept in sync
Check Answer