# encode(_:) Returns a property list that represents an encoded version of the value you supply. ``` func encode(_ value: Value) throws -> Data where Value : Encodable ``` ## Parameters `value` The value to encode as a property list. ## Discussion If there’s a problem encoding the value you supply, this method throws an error based on the type of problem: - The value fails to encode, or contains a nested value that fails to encode—this method throws the corresponding error. - The value can’t be encoded as a property list—this method throws the 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)