TOKEN.txt

pragma solidity ^0.8.2;

contract token{
    mapping(address => uint) public balances;
    mapping(address => mapping(address => uint)) public allowance;
    uint public totalSupply = 10000 * 10 ** 18;
    string public name = "my token";
    string public symbol = "TKN";
    uint public decimals = 18;

    event Transfer(address indexed from, address indexed to, uint value);
    event Approval(address indexed owner, address indexed spender, uint value);
    constructor(){
        balances[msg.sender] = totalSupply;
    }
    function balanceOf(address owner) public view returns(uint){
        return balances[owner];
    }
    function transfer(address to, uint value) public returns(bool){
        require(balanceOf(msg.sender) >= value, 'balance too low');
        balances[to] += value;
        balances[msg.sender] -= value;
        emit Transfer(msg.sender, to, value);
        return true;
    }

    function transferFrom(address from, address to, uint value) public returns(bool){
    require(balanceOf(from)>= value, 'balance too low');
    require(allowance[from][msg.sender] >= value, 'allowance too low');
    balances[to] += value;
    balances[from] -= value;
    emit Transfer(from, to, value);
    return true;
    }

    function approve(address spender, uint value) public returns(bool){
        allowance[msg.sender][spender] = value;
        emit Approval(msg.sender, spender, value);
        return true;    
    }
}