[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07 UTC."],[[["\u003cp\u003eThe latest version of the \u003ccode\u003ePrecondition\u003c/code\u003e class documentation is 3.10.0, but the current page is for version 3.8.0, and there are many other versions available between 2.3.1 and 3.9.0.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003ePrecondition\u003c/code\u003e class is immutable and used to define requirements for update operations within the Firestore API.\u003c/p\u003e\n"],["\u003cp\u003eThis class has two properties, \u003ccode\u003eExists\u003c/code\u003e (checks if the document exists or not) and \u003ccode\u003eLastUpdateTime\u003c/code\u003e (checks the document's last update time).\u003c/p\u003e\n"],["\u003cp\u003eThere are two static properties called \u003ccode\u003eMustExist\u003c/code\u003e, which requires the document to exist, and \u003ccode\u003eNone\u003c/code\u003e, which has no precondition.\u003c/p\u003e\n"],["\u003cp\u003eThe static method \u003ccode\u003eLastUpdated(Timestamp timestamp)\u003c/code\u003e creates a precondition that requires the document to have a specific last update time.\u003c/p\u003e\n"]]],[],null,[]]