yrong

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

/******************************************************************************\
* Author: Nick Mudge <[email protected]> (https://twitter.com/mudgen)
* EIP-2535 Diamonds: https://eips.ethereum.org/EIPS/eip-2535
*
* Implementation of a diamond.
/******************************************************************************/

yrong

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

yrong

var InterfacePayroll = = artifacts.require("./InterfacePayroll");
var EmployeeStorage= = artifacts.require("./EmployeeStorage");
var Token= = artifacts.require("./Token");
var Payroll = = artifacts.require("./Payroll");
module.exports = function(deployer) {
deployer.deploy(InterfacePayroll );
deployer.deploy(EmployeeStorage);
deployer.deploy(Token);
deployer.link(InterfacePayroll ,Payroll );
deployer.link(EmployeeStorage,Payroll );

yrong

{
    // Use IntelliSense to learn about possible attributes.
    // Hover to view descriptions of existing attributes.
    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [
        {
            "type": "lldb",
            "request": "launch",
            "name": "Debug executable 'parallel'",

yrong

{
  "solidity.packageDefaultDependenciesContractsDirectory": "",
  "solidity.packageDefaultDependenciesDirectory": "scripts/evm/node_modules"
}

yrong

{
  "version": "0.2.0",
  "configurations": [
    {
      "type": "node",
      "request": "launch",
      "name": "hardhat test",
      "skipFiles": ["<node_internals>/**"],
      "runtimeExecutable": "${workspaceFolder}/packages/hardhat/node_modules/.bin/hardhat",
      "args": ["test", "--network", "localhost"],

yrong

pragma solidity ^0.4.24;


contract ECDSA {

    function verify() public returns (bool) {
        bytes32 message = ethMessageHash("TEST");

        bytes memory sig = hex"bceab59162da5e511fb9c37fda207d443d05e438e5c843c57b2d5628580ce9216ffa0335834d8bb63d86fb42a8dd4d18f41bc3a301546e2c47aa1041c3a1823701";
        address addr = 0x999471bb43b9c9789050386f90c1ad63dca89106;