[u8; 20]
Array 50 v393About This Type
Fixed-length array of 20 u8 values.
Always exactly 20 elements. No length prefix needed since the size is known at compile time.
Encoding: 20 elements encoded consecutively, no length prefix.
Fixed-Length Array
- Element Type
- u8
- Length
- 20
- SCALE Encoding
- Fixed-length (20 x element size bytes)
SCALE Encoding
- Rule
- 20 elements encoded consecutively, no length prefix (size known at compile time).
- Size
- 20 bytes
Examples
20-byte array = [u8; 20]
0xxxxxxxxx...20 raw bytes 20 bytes concatenated, no prefixCode Examples
import { TypeRegistry } from "@polkadot/types";
const registry = new TypeRegistry();
// Encode a [u8; 20]
const arr = registry.createType("[u8; 20]", new Uint8Array(20));
console.log("Hex:", arr.toHex());Referenced By (5)
Type Information
- Type ID
- 50
- Kind
- Array
- Runtime
- v393