Vec<Vec<u8>>

Sequence 109 v393

About This Type

Variable-length list of Vec<u8> values.

A dynamically-sized collection. The encoded length precedes the element data.

Encoding: Compact<u32> length prefix followed by each element encoded in sequence.

Sequence (Vec)

Element Type
Vec<u8>
SCALE Encoding
Length-prefixed (Compact<u32> length followed by elements)

SCALE Encoding

Rule
Compact<u32> length prefix followed by each Vec<u8> element encoded in sequence.
Size
variable

Examples

3-element Vec<Vec<u8>> = [elem0, elem1, elem2]
0x0c<elem0><elem1><elem2>
0c Compact length = 3
<elem0>... Each Vec<u8> encoded in sequence

Code Examples

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

const registry = new TypeRegistry();

// Encode a Vec<Vec<u8>>
const vec = registry.createType("Vec<Vec<u8>>", [1, 2, 3]);
console.log("Hex:", vec.toHex());

Referenced By (3)

#106 System::Call via kill_storage.keys#583 ValidTransaction via requires#583 ValidTransaction via provides

Type Information

Type ID
109
Kind
Sequence
Runtime
v393
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