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Created September 8, 2021 15:07
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Created using remix-ide: Realtime Ethereum Contract Compiler and Runtime. Load this file by pasting this gists URL or ID at
pragma solidity ^0.8.4;
contract SimpleMappingExample {
mapping(uint => bool) public myMapping;
mapping(address => bool) public myAddressMapping;
mapping (uint => mapping(uint => bool)) uintUintBoolMapping;
function setValue(uint _index) public {
myMapping[_index] = true;
function setMyAddressToTrue() public {
myAddressMapping[msg.sender] = true;
function setUintUintBoolMapping(uint _index1, uint _index2, bool _value) public {
uintUintBoolMapping[_index1][_index2] = _value;
function getUintUintBoolMapping(uint _index1, uint _index2) public view returns (bool) {
return uintUintBoolMapping[_index1][_index2];
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