fixEncoderSize

function fixEncoderSize<TFrom, TSize>(
    encoder,
    fixedBytes,
): FixedSizeEncoder<TFrom, TSize>;

Creates a fixed-size encoder from a given encoder.

The resulting encoder ensures that encoded values always have the specified number of bytes. If the original encoded value is larger than fixedBytes, it is truncated. If it is smaller, it is padded with trailing zeroes.

For more details, see fixCodecSize.

Type Parameters

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

Parameters

Parameter	Type	Description
`encoder`	`Encoder`<`TFrom`>	The encoder to wrap into a fixed-size encoder.
`fixedBytes`	`TSize`	The fixed number of bytes to write.

Returns

FixedSizeEncoder<TFrom, TSize>

A FixedSizeEncoder that ensures a consistent output size.

Example

const encoder = fixEncoderSize(getUtf8Encoder(), 4);
encoder.encode("Hello"); // 0x48656c6c (truncated)
encoder.encode("Hi");    // 0x48690000 (padded)
encoder.encode("Hiya");  // 0x48697961 (same length)

Remarks

If you need a full codec with both encoding and decoding, use fixCodecSize.