It's a language implementation gotcha, not really a library problem. The internal data structure used to represent values is polymorphic and uses flags to represent the types of operations performed on the represented data (numeric, string, etc).
The only reliable way to serialize a value with a desired type is to request that type explicitly--as one might do to represent a large integer or very precise decimal in JavaScript or JSON, for example.
The only reliable way to serialize a value with a desired type is to request that type explicitly--as one might do to represent a large integer or very precise decimal in JavaScript or JSON, for example.