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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07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\u003eThis document provides reference information for the \u003ccode\u003eSetOptions\u003c/code\u003e class within the Google Cloud Firestore API, specifically version 3.7.0, used for defining how set operations behave.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eSetOptions\u003c/code\u003e class is immutable and controls whether data is merged or overwritten during set operations in Firestore.\u003c/p\u003e\n"],["\u003cp\u003eKey properties within the class include \u003ccode\u003eFieldMask\u003c/code\u003e, which specifies fields to be merged, \u003ccode\u003eMerge\u003c/code\u003e, indicating whether values should be merged, and static properties \u003ccode\u003eMergeAll\u003c/code\u003e and \u003ccode\u003eOverwrite\u003c/code\u003e for merging all fields or overwriting, respectively.\u003c/p\u003e\n"],["\u003cp\u003eThe class also offers methods \u003ccode\u003eMergeFields(params FieldPath[])\u003c/code\u003e and \u003ccode\u003eMergeFields(params string[])\u003c/code\u003e, which allows to create an instance to merge only specific fields into a document.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eSetOptions\u003c/code\u003e inherit from object, with inherited members including \u003ccode\u003eGetHashCode()\u003c/code\u003e, \u003ccode\u003eGetType()\u003c/code\u003e, and \u003ccode\u003eToString()\u003c/code\u003e.\u003c/p\u003e\n"]]],[],null,[]]
