{"Entry":{"collection":"func","key":"casefold","name":"casefold","aliases":[],"metadata":{"changed_in":[],"changes":[{"descriptions_changed":false,"doc_overhaul":false,"from":"17","group_changed":null,"signatures":{"added":[],"removed":[]},"status":"added","to":"18"}],"content_hash":"c325f86d36219acfca14372f7a4f3da5cebf2bce86dac83b741fda05eab13384","first_version":"18","group":"string","group_label":"String Functions And Operators","groups":["string"],"imported_at":"2026-09-14T21:49:48.643929+08:00","last_version":"20","name":"casefold","name_key":"casefold","position":3003,"present_in":["18","19","20"],"signature":"casefold ( text ) → text","signature_count":1,"slug":"casefold","source_rev":"2026-09-14T13:14:25.684213+00:00@99e6866c","summary":"Performs case folding of the input string according to the collation.","summary_zh":""}},"Definition":{"Collection":"func","Key":"casefold","SourceDatabase":"center","Version":"18","SourceTable":"func","SourceKey":"casefold","SourceRevision":"2026-09-14T13:14:25.684213+00:00@99e6866c","Facts":{"description":"Performs case folding of the input string according to the collation. 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