[[["わかりやすい","easyToUnderstand","thumb-up"],["問題の解決に役立った","solvedMyProblem","thumb-up"],["その他","otherUp","thumb-up"]],[["必要な情報がない","missingTheInformationINeed","thumb-down"],["複雑すぎる / 手順が多すぎる","tooComplicatedTooManySteps","thumb-down"],["最新ではない","outOfDate","thumb-down"],["翻訳に関する問題","translationIssue","thumb-down"],["サンプル / コードに問題がある","samplesCodeIssue","thumb-down"],["その他","otherDown","thumb-down"]],["最終更新日 2025-07-26 UTC。"],[],["The `flatten()` method transforms a collection of collections into a single `FeatureCollection`. It takes one argument, `collection`, which represents the input collection of collections. The method's core function is to consolidate multiple collections within a parent collection into a unified `FeatureCollection`, making it easier to access and manage the data. The output will be the data in `FeatureCollection` format.\n"]]