Type alias TraverseEachCallback<D>

TraverseEachCallback<D>: ((doc, docIndex, batchIndex) => void | Promise<void>)

Type Parameters

D = firestore.DocumentData

Type declaration

- (doc, docIndex, batchIndex): void | Promise<void>
- An asynchronous function that takes a document snapshot, its 0-based index within the batch, and the 0-based index of the batch as arguments.
  Parameters
  - doc: firestore.QueryDocumentSnapshot<D>
  - docIndex: number
  - batchIndex: number
  Returns void | Promise<void>

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