FixedSizeCodec

An object that can encode and decode a value to and from a fixed-size byte array.

See Codec to learn more about creating and composing codecs.

Example

const codec: FixedSizeCodec<number | bigint, bigint, 8>;
const bytes = codec.encode(42);
const value = codec.decode(bytes); // 42n
const size = codec.fixedSize; // 8

See

Type Parameters

Type Parameter	Default type	Description
`TFrom`	-	The type of the value to encode.
`TTo` extends `TFrom`	`TFrom`	The type of the decoded value.
`TSize` extends `number`	`number`	The fixed size of the encoded value in bytes.

Properties

Property	Modifier	Type	Description
`decode`	`readonly`	(`bytes`, `offset?`) => `TTo`	Decodes the provided byte array at the given offset (or zero) and returns the value directly.
`encode`	`readonly`	(`value`) => `ReadonlyUint8Array`	Encode the provided value and return the encoded bytes directly.
`fixedSize`	`readonly`	`TSize`	The fixed size of the encoded value in bytes.
`read`	`readonly`	(`bytes`, `offset`) => [`TTo`, `number`]	Reads the encoded value from the provided byte array at the given offset. Returns the decoded value and the offset of the next byte after the encoded value.
`write`	`readonly`	(`value`, `bytes`, `offset`) => `number`	Writes the encoded value into the provided byte array at the given offset. Returns the offset of the next byte after the encoded value.

FixedSizeCodec

Example

See

Type Parameters

Properties

On this page