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Options that configure how data is retrieved from a DocumentSnapshot (e.g. the desired behavior for server timestamps that have not yet been set to their final value).

Index

Properties

Properties

Optional serverTimestamps

serverTimestamps: "estimate" | "previous" | "none"

If set, controls the return value for server timestamps that have not yet been set to their final value.

By specifying 'estimate', pending server timestamps return an estimate based on the local clock. This estimate will differ from the final value and cause these values to change once the server result becomes available.

By specifying 'previous', pending timestamps will be ignored and return their previous value instead.

If omitted or set to 'none', null will be returned by default until the server value becomes available.

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Last updated 2022-07-27 UTC.

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