[u8; 256]

Array 516 v393

About This Type

Fixed-length array of 256 u8 values.

Always exactly 256 elements. No length prefix needed since the size is known at compile time.

Encoding: 256 elements encoded consecutively, no length prefix.

Fixed-Length Array

Element Type
u8
Length
256
SCALE Encoding
Fixed-length (256 x element size bytes)

SCALE Encoding

Rule
256 elements encoded consecutively, no length prefix (size known at compile time).
Size
256 bytes

Examples

256-byte array = [u8; 256]
0xxxxxxxxx...
256 raw bytes 256 bytes concatenated, no prefix

Code Examples

import { TypeRegistry } from "@polkadot/types";

const registry = new TypeRegistry();

// Encode a [u8; 256]
const arr = registry.createType("[u8; 256]", new Uint8Array(256));
console.log("Hex:", arr.toHex());

Referenced By (1)

Type Information

Type ID
516
Kind
Array
Runtime
v393