leozc

import re

def identify_btc_address_type(address):
    # P2PKH: Starts with '1'
    if address.startswith('1'):
        return 'P2PKH'
    # P2SH: Starts with '3'
    elif address.startswith('3'):
        return 'P2SH'
    # P2WPKH and P2TR: Start with 'bc1'

leozc

const Web3 = require('web3');

// Connect to Ethereum node (use your own provider URL here)
const web3 = new Web3('https://xxx.quiknode.pro/xxx/');
const web3s = new Web3(new Web3.providers.WebsocketProvider('wss://xxx.quiknode.pro/yyy/'));

web3s.eth.subscribe('newBlockHeaders', async (error, blockHeader) => {
    if (error) {
        console.error(`Error: ${error}`);
        return;

leozc

def testA ():
    for i in range(3):
        for p in range(i,3):
            # print tuple of i and p
            print((i,p))

#time to run the function

def sortA (array):
    for i in range(len(array)):

leozc

//express basic authentication example
const app = require('express')()
const basicAuth = require('express-basic-auth')

app.use(basicAuth({
    users: { 'admin': '123456' },
    challenge: true,
    realm: 'xxxx',
    unauthorizedResponse: getUnauthorizedResponse

leozc

REMIX EXAMPLE PROJECT

Remix example project is present when Remix loads very first time or there are no files existing in the File Explorer. 
It contains 3 directories:

1. 'contracts': Holds three contracts with different complexity level, denoted with number prefix in file name.
2. 'scripts': Holds two scripts to deploy a contract. It is explained below.
3. 'tests': Contains one test file for 'Ballot' contract with unit tests in Solidity.

SCRIPTS

leozc

https://github.com/bazelbuild/bazel/blob/master/src/main/java/com/google/devtools/build/lib/bazel/rules/python/python_stub_template.txt#L350

add

```
import code
code.interact()
```

leozc

package com.leozc.FutureCache;

import java.util.Objects;
import java.util.Optional;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ThreadLocalRandom;
import java.util.function.BiConsumer;
import java.util.function.BiFunction;
import java.util.function.Function;

leozc

TIME=time
for (( i=1; i<=10000000; i++))
  do
    filename=`cat /dev/urandom | env LC_CTYPE=C tr -cd 'a-f0-9' | head -c 32`
    folder=`cat /dev/urandom | env LC_CTYPE=C tr -cd 'a-f0-9' | head -c 2`
    mkdir -p $folder
    base64 /dev/urandom | head -c 102400 > $folder/$filename.txt
    git add  $folder/$filename.txt
    $TIME -o stat.txt -a  -f "%U|%S" git commit . -m"for $filename.txt"
    echo $i

leozc

#!/bin/bash

#brew install gun-time for Mac
for (( i=1; i<=200000; i++))
	do
    filename=`cat /dev/urandom | env LC_CTYPE=C tr -cd 'a-f0-9' | head -c 32`
    folder=`cat /dev/urandom | env LC_CTYPE=C tr -cd 'a-f0-9' | head -c 2`
    mkdir -p $folder
    base64 /dev/urandom | head -c 100000 > $folder/$filename.txt
    git add  $folder/$filename.txt

leozc

FROM phusion/baseimage:latest
LABEL com.leozc.version="0.0.2-beta"
MAINTAINER Leo Liang

RUN apt-get update && apt-get install  -y libxml2-dev mercurial libxslt1-dev gettext libncurses-dev libreadline-dev libpq-dev libgeos++-dev libtiff5-dev libjpeg8-dev zlib1g-dev libfreetype6-dev liblcms2-dev libwebp-dev tcl8.6-dev tk8.6-dev python-tk g++ python-setuptools python libffi-dev python-dev curl gcc openjdk-8-jdk scala git telnet \
 && easy_install pip && pip install --upgrade pip && mkdir /pants && cd /pants &&  curl -L -O https://pantsbuild.github.io/setup/pants && chmod +x    pants && touch pants.ini &&  ./pants -V
 
pip install virtualenv