The fields to merge. An empty array is equivalent to using MergeAll.
Must not be null or contain any empty or null elements. Each field is treated as a dot-separated list of segments.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07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 \u003ccode\u003eSetOptions\u003c/code\u003e class, part of the Google.Cloud.Firestore namespace, provides options for managing set operations in Firestore.\u003c/p\u003e\n"],["\u003cp\u003eThe latest version of the documentation available is version 3.10.0, with a list of previous versions ranging from 3.9.0 down to 2.3.1 also available.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eSetOptions\u003c/code\u003e offers functionalities like \u003ccode\u003eMergeAll\u003c/code\u003e to merge all fields and \u003ccode\u003eOverwrite\u003c/code\u003e to replace the target object entirely, and has an immutable property \u003ccode\u003eMerge\u003c/code\u003e to indicate whether values are merged, especially when a field mask is present.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eFieldMask\u003c/code\u003e property, a read-only list of \u003ccode\u003eFieldPath\u003c/code\u003e objects, determines which fields should be merged; if empty, all fields are affected.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eMergeFields\u003c/code\u003e allows for specifying fields to merge, either through an array of \u003ccode\u003eFieldPath\u003c/code\u003e objects or an array of string representations, treating each string as a dot-separated list of field segments.\u003c/p\u003e\n"]]],[],null,[]]
