# decode(_:from:) Returns a value of the type you specify, decoded from a JSON object. ``` func decode(_ type: T.Type, from data: Data) throws -> T where T : Decodable ``` ## Parameters `type` The type of the value to decode from the supplied JSON object. `data` The JSON object to decode. ## Return Value A value of the specified type, if the decoder can parse the data. ## Discussion If the data isn’t valid JSON, this method throws the error. If a value within the JSON fails to decode, this method throws the corresponding error. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)