U256
Composite 86 v393primitive_types::U256
About This Type
256-bit unsigned integer for very large numeric values.
Used in EVM-compatible operations and for values that exceed u128 range.
Encoding: Fixed-width: 32 bytes, little-endian.
Fields (1)
| # | Name | Type |
|---|---|---|
| 0 | (unnamed) | [u64; 4] |
SCALE Encoding
- Rule
- 1 field encoded consecutively in declaration order. No field names or delimiters.
- Size
- sum of field sizes
Examples
Struct with 1 field = ?: [u64; 4]
0x<field0>field 0 field0: [u64; 4]Code Examples
import { TypeRegistry } from "@polkadot/types";
const registry = new TypeRegistry();
// Encode U256
const value = registry.createType("U256", {
field: 0
});
console.log("Hex:", value.toHex());Referenced By (37)
#85 BaseFee::Event via NewBaseFeePerGas.fee#331 LegacyTransaction via nonce#331 LegacyTransaction via gas_price#331 LegacyTransaction via gas_limit#331 LegacyTransaction via value#335 EIP2930Transaction via nonce#335 EIP2930Transaction via gas_price#335 EIP2930Transaction via gas_limit#335 EIP2930Transaction via value#339 EIP1559Transaction via nonce#339 EIP1559Transaction via max_priority_fee_per_gas#339 EIP1559Transaction via max_fee_per_gas#339 EIP1559Transaction via gas_limit#339 EIP1559Transaction via value#340 EIP7702Transaction via nonce#340 EIP7702Transaction via max_priority_fee_per_gas#340 EIP7702Transaction via max_fee_per_gas#340 EIP7702Transaction via gas_limit#340 EIP7702Transaction via value#342 AuthorizationListItem via nonce
and 17 more...
Type Information
- Type ID
- 86
- Kind
- Composite
- Path
- primitive_types::U256
- Runtime
- v393