[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-04-17 UTC."],[[["This page details the `Precondition` class within the Google Cloud Firestore API, which is used to specify conditions for update operations on documents."],["The `Precondition` class includes properties like `Exists` and `LastUpdateTime`, allowing checks for document existence and the time of its last update."],["The class also offers static properties `MustExist` and `None` for common precondition scenarios, like requiring a document to exist or not having any precondition respectively."],["The `LastUpdated(Timestamp)` method allows for the creation of a precondition specifying that a document's last update time must match a given timestamp."],["The latest version of the documentation available is version 3.10.0 and this content covers version 3.9.0 of the class Precondition, with links provided to older versions."]]],[]]
