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Is it possible to extend NSDecimalNumber to conform Encodable & Decodable protocols?
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The simplest way to make a type codable is to declare its properties using types that are already Codable . These types include standard library types like String , Int , and Double ; and Foundation types like Date , Data , and URL .
Codable is the combined protocol of Swift's Decodable and Encodable protocols. Together they provide standard methods of decoding data for custom types and encoding data to be saved or transferred.
The Codable protocol in Swift is really a union of two protocols: Encodable and Decodable . These two protocols are used to indicate whether a certain struct, enum, or class, can be encoded into JSON data, or materialized from JSON data.
In swift you should use Decimal type. This type confirms to protocols Encodable & Decodable from the box.
If you have NSDecimalNumber type in your code it's easy to cast it to Decimal
let objcDecimal = NSDecimalNumber(decimal: 10)
let swiftDecimal = (objcDecimal as Decimal)
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