IERC165
supportsInterface
function supportsInterface(bytes4 interfaceId) external view returns (bool)Query if a contract implements an interface
Interface identification is specified in ERC-165. This function uses less than 30,000 gas.
Parameters
| Name | Type | Description |
|---|---|---|
| interfaceId | bytes4 | The interface identifier, as specified in ERC-165 |
Return Values
| Name | Type | Description |
|---|---|---|
| [0] | bool | true if the contract implements interfaceID and interfaceID is not 0xffffffff, false otherwise |