GetIdChanges
The GetIdChanges
type describes a function that returns information about the changes to a set of Ids
during a transaction.
(): {[id: Id]: 1 | -1}
returns | {[id: Id]: 1 | -1} | An object keyed by |
---|
A GetIdChanges
function is provided to every listener when called due Ids
in the Store
changing. It returns an object where each key is an Id
that changed. The listener can then easily identify which Ids
have been added (those with the value 1
), and which have been removed (those with the value -1
).
Since
v3.3.0