OptionCodecConfig

type OptionCodecConfig<TPrefix> = object;

Defines the configuration options for Option codecs.

The getOptionCodec function behaves similarly to getNullableCodec but encodes Option<T> types instead of T | null types.

This configuration controls how None values are encoded and how presence is determined when decoding.

See

Type Parameter	Description
`TPrefix` extends `NumberCodec` \| `NumberDecoder` \| `NumberEncoder`	A number codec, encoder, or decoder used as the presence prefix.

optional noneValue: ReadonlyUint8Array | "zeroes";

Specifies how None values are represented in the encoded data.

By default, None values are omitted from encoding.
'zeroes': The bytes allocated for the value are filled with zeroes. This requires a fixed-size codec for the item.
Custom byte array: None values are replaced with a predefined byte sequence. This results in a variable-size codec.

No explicit noneValue is used; None values are omitted.

optional prefix: TPrefix | null;

The presence prefix used to distinguish between None and present values.

By default, a u8 prefix is used (0 = None, 1 = Some).
Custom number codec: Allows defining a different number size for the prefix.
null: No prefix is used; noneValue (if provided) determines None. If no noneValue is set, None is identified by the absence of bytes.

u8 prefix.