VincentDebug

pragma solidity >=0.5.16;

interface IERC20 {
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint value);

    function name() external view returns (string memory);
    function symbol() external view returns (string memory);
    function decimals() external view returns (uint8);
    function totalSupply() external view returns (uint);

VincentDebug

pragma solidity >=0.5.16;

interface IERC20 {
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint value);

    function name() external view returns (string memory);
    function symbol() external view returns (string memory);
    function decimals() external view returns (uint8);
    function totalSupply() external view returns (uint);

VincentDebug

// https://derickbailey.com/2016/03/09/creating-a-true-singleton-in-node-js-with-es6-symbols/

// create a unique, global symbol name
// -----------------------------------

const FOO_KEY = Symbol.for("My.App.Namespace.foo");

// check if the global object has this symbol
// add it if it does not have the symbol, yet
// ------------------------------------------

VincentDebug

pragma solidity ^0.4.24;

/**
 * @title ERC20 interface
 * @dev see https://github.com/ethereum/EIPs/issues/20
 */
interface IERC20 {
  function totalSupply() external view returns (uint256);

  function balanceOf(address who) external view returns (uint256);

VincentDebug

Keybase proof

I hereby claim:

• I am wenshenjun on github.
• I am shenjun (https://keybase.io/shenjun) on keybase.
• I have a public key whose fingerprint is 4509 75C3 CB1C 9F57 06E2 9FBD 4043 3780 9DD9 BD09

To claim this, I am signing this object: