Ron yrong

Polkadot address:12wy2jhGtaKw4oXG6ZCDENii8JryGN8CyQhiroMhD8iPJG5k

yrong / offline_transfer.js

Created May 15, 2025 02:34 — forked from xcaptain/offline_transfer.js

sign transaction offline and then submit to chain

	const { ApiPromise, WsProvider } = require('@polkadot/api');
	const { Keyring } = require('@polkadot/keyring');
	const {
	construct,
	decode,
	deriveAddress,
	getRegistry,
	methods,
	PolkadotSS58Format,
	} = require('@substrate/txwrapper-polkadot');

yrong / ECDSA.sol

Created December 13, 2022 17:58 — forked from BjornvdLaan/ECDSA.sol

Verification of externally created ECDSA signatures in Solidity

	pragma solidity ^0.4.24;


	contract ECDSA {

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

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

yrong / launch.json

Created September 15, 2022 10:36 — forked from 0xGabi/launch.json

VSCode configuration to debug using hardhat in a monorepo

	{
	"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 / tmux-cheatsheet.markdown

Created June 29, 2022 14:02 — forked from MohamedAlaa/tmux-cheatsheet.markdown

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

yrong / Parachain 众筹拍卖模块.md

Created March 1, 2021 14:12 — forked from xlc/Parachain 众筹拍卖模块.md

Parachain 众筹拍卖模块

管理员创建众筹 crowdfund::create
- 参数
  - orign: Origin
    - 要求 Signed ，任何账号都可以发起众筹
  - cap: Balance
最多可以筹得的硬顶

yrong / reflection.go

Created December 29, 2020 13:54 — forked from drewolson/reflection.go

Golang Reflection Example

	package main

	import (
	"fmt"
	"reflect"
	)

	type Foo struct {
	FirstName string `tag_name:"tag 1"`
	LastName string `tag_name:"tag 2"`

yrong / main.go

Created December 16, 2020 15:58 — forked from kjk/main.go

	package main

	// https://blog.kowalczyk.info/article/wOYk/advanced-command-execution-in-go-with-osexec.html

	import (
	"fmt"
	"io"
	"log"
	"os"
	"os/exec"

yrong / pipeline_demo.go

Created November 23, 2020 14:58 — forked from claudiofahey/pipeline_demo.go

	//
	// Companion code to https://medium.com/statuscode/pipeline-patterns-in-go-a37bb3a7e61d
	//
	// To run:
	// go get github.com/pkg/errors
	// go run -race pipeline_demo.go
	//

	package main

yrong / mysql-conf.sh

Created November 9, 2020 00:50 — forked from lesstif/mysql-conf.sh

MySQL Server configuration file for docker.

	#!/bin/bash

	export MYSQL_CNF=$(cat <<CNF
	# For advice on how to change settings please see
	# http://dev.mysql.com/doc/refman/5.6/en/server-configuration-defaults.html

	[mysqld]
	#
	# Remove leading # and set to the amount of RAM for the most important data
	# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.

yrong / customEdge.html

Created November 12, 2019 13:33 — forked from davidjgraph/customEdge.html

Custom edge example for mxGraph

	<!--
	$Id: markers.html,v 1.4 2013/10/28 08:44:55 gaudenz Exp $
	Copyright (c) 2006-2014, JGraph Ltd

	Demonstrates creating a custom edge in mxGraph
	-->
	<html>
	<head>
	<title>Custom edge example for mxGraph</title>