Str

Primitive 80 v393

About This Type

UTF-8 string.

Variable-length text data.

Encoding: Compact<u32> byte length prefix followed by UTF-8 bytes.

Primitive Type

Name: Str
SCALE Encoding: Fixed-width, little-endian

SCALE Encoding

Rule: Compact<u32> byte length prefix followed by UTF-8 bytes.
Size: variable

Examples

"Hello" = Hello

0x1448656c6c6f

14 Compact length = 5 (5 << 2 = 20 = 0x14)

48 65 6c 6c 6f UTF-8 bytes for "Hello"

Code Examples

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

const registry = new TypeRegistry();

// Encode a Str value
const value = registry.createType("Str", 0);
console.log("Hex:", value.toHex());
console.log("Bytes:", value.toU8a());

Type Information

Type ID: 80
Kind: Primitive
Runtime: v393

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