Vec<(Vec<u8>, Vec<u8>)>

Sequence 107 v393

About This Type

Variable-length list of (Vec<u8, 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>, Vec<u8>)
SCALE Encoding: Length-prefixed (Compact<u32> length followed by elements)

SCALE Encoding

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

Examples

3-element Vec<(Vec<u8>, Vec<u8>)> = [elem0, elem1, elem2]

0x0c<elem0><elem1><elem2>

0c Compact length = 3

<elem0>... Each (Vec<u8>, Vec<u8>) encoded in sequence

Code Examples

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

const registry = new TypeRegistry();

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

Referenced By (1)

#106 System::Call via set_storage.items

Type Information

Type ID: 107
Kind: Sequence
Runtime: v393

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