github.com/iotexproject/iotex-core@v1.14.1-rc1/action/protocol/execution/testdata-shanghai/mapping-delete.sol (about)

     1  // SPDX-License-Identifier: GPL-3.0
     2  
     3  pragma solidity ^0.8.14;
     4  
     5  contract MyContract {
     6      struct Data {
     7          uint256 a;
     8          uint256 b;
     9      }
    10      mapping(uint256 => Data) public items;
    11  
    12      constructor() {
    13          items[0] = Data(1, 2);
    14          items[1] = Data(3, 4);
    15          items[2] = Data(5, 6);
    16          delete items[1];
    17      }
    18  }