BbsonLin

import 'package:flutter/material.dart';

class CustomActionPage extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text("Custom Action Page")),
      body: Center(
        child: CustomActionButton(
          doAction: openDialog,

BbsonLin

#!/bin/bash

NAME=flowerd
DESC="flower daemon"

PIDFILE=./$NAME.pid

PIPENV_VENV_PATH=`pipenv --venv`

FLOWER="$PIPENV_VENV_PATH/bin/celery flower"

BbsonLin

import serial

FLAG = 0x7E
HEX_NUMBER = 0xFF
HEX_NUMBERS = [0xFF, 0x15]

# INT <---> STRING(hex)
print(FLAG, type(FLAG))  # 126 <class 'int'>
print(hex(FLAG), type(hex(FLAG)))  # 0x7e <class 'str'>
print(int(hex(FLAG), 16))  # 126

BbsonLin

d = {'Bobson': 20, 'Bob': 22, 'Lin': 33}

# filter by key
d2 = {k : v for k,v in filter(lambda t: t[0] in ['Bobson', 'Lin'], d.items())}
print('d2 = ', d2)

# filter by value
d3 = {k : v for k,v in d.items() if v in [22, 33]}
print('d3 = ', d3)

BbsonLin

set nu
set bg=dark

if has("autocmd")
  au BufReadPost * if line("'\"") > 0 && line("'\"") <= line("$") | exe "normal! g`\"" | endif
endif


call plug#begin('~/.vim/plugged')

BbsonLin

Setup for developer

1. Install Basic

sudo apt install vim git tig htop

2. Git cz-cli (Ref)

BbsonLin

import time

from datetime import datetime, timedelta

print('------------------------------------')


# Get now timestamp & datetime
now_dt = datetime.today()
print('Now datetime is:', now_dt)

BbsonLin

import time
import hashlib

serial = 'QQ0001'

if __name__ == '__main__':
    now_time = time.time()
    print(now_time)
    h1 = hashlib.sha1()
    h1.update((str(now_time) + serial).encode('utf-8'))

BbsonLin

Backend Setup

Using the pipenv for a clean Python environment

1. Install pipenv

$ sudo apt-get install python3-pip
$ sudo pip3 install pipenv

BbsonLin

// html code
// <a href="#" class="btn btn--white">Button</a>

$color-grey-dark: #777;
$color-white: #fff;
$color-black: #000;

html {
  // Let 1rem = 10px
  font-size: 62.5%;