agoiabel

pragma solidity ^0.6.4;

contract Token {
    ...
    ...

    mapping(address => uint) public balanceOf;
    event Transfer(address indexed _from, address indexed _to, uint256 _value);

    

agoiabel

pragma solidity ^0.6.4;

contract Token {
    ...
    ...

    mapping(address => uint) public balanceOf;
    event Transfer(address indexed _from, address indexed _to, uint256 _value);

    function transfer(address _to, uint _value) public returns (bool success) {

agoiabel

pragma solidity ^0.6.4;

contract Token {
  uint public totalSupply;
  mapping(address => uint) public balanceOf;
  
  constructor(uint _totalSupply) {
    totalSupply = _totalSupply;
    balance[msg.sender] = _totalSupply;
  }

agoiabel

pragma solidity ^0.6.4;

contract Token {
  uint public totalSupply;
  
  constructor(uint _totalSupply) {
    totalSupply = _totalSupply;
  }
}

agoiabel

pragma solidity ^0.6.4;

contract Token {
}

agoiabel

pragma solidity ^0.6.4;

contract Token {

    uint public decimals = 18;
    string public symbol = 'AT';
    string public name = 'Agoi Token';
    
}

agoiabel

module.exports = {

  networks: {
    development: {
     host: "127.0.0.1",     // Localhost (default: none)
     port: 7545,            // Standard Ethereum port (default: none)
     network_id: "*",       // Any network (default: none)
    },
  },

agoiabel

pragma solidity ^0.5.3;

contract Mapping {
    
    mapping(address => uint) balances;
    mapping(address => mapping(address => bool)) approved;
    
    function manipulateMapOfMap(spender) external {
        approved[msg.sender][spender] = true                     //assign a value to the approved map
        approved[msg.sender][spender];                           //get the value of the map

agoiabel

pragma solidity ^0.5.3;

contract Mapping {
    
    mapping(address => uint[]) scores;    
    
    function manipulateArrayMap() external {
        scores[msg.sender].push(1);             //assign a value; 
        scores[msg.sender].push(2);             //assign another element
        

agoiabel

pragma solidity ^0.5.3;

contract Mapping {
    
    mapping(address => uint) balances;
    
    function manipulateMap() external {
        balances[msg.sender] = 100;             //assign a value; 
        
        balances[msg.sender]                    //read a value;