[u8; 4]
Array 18 v393About This Type
Fixed-length array of 4 u8 values.
Always exactly 4 elements. No length prefix needed since the size is known at compile time.
Encoding: 4 elements encoded consecutively, no length prefix.
Fixed-Length Array
- Element Type
- u8
- Length
- 4
- SCALE Encoding
- Fixed-length (4 x element size bytes)
SCALE Encoding
- Rule
- 4 elements encoded consecutively, no length prefix (size known at compile time).
- Size
- 4 bytes
Examples
4-byte array = [u8; 4]
0xxxxxxxxx...4 raw bytes 4 bytes concatenated, no prefixCode Examples
import { TypeRegistry } from "@polkadot/types";
const registry = new TypeRegistry();
// Encode a [u8; 4]
const arr = registry.createType("[u8; 4]", new Uint8Array(4));
console.log("Hex:", arr.toHex());Referenced By (7)
Type Information
- Type ID
- 18
- Kind
- Array
- Runtime
- v393