| // summary : Playing/testing with logback configuration. | |
| // keywords : scala, scalatest, logs, logback, @testable | |
| // publish : gist | |
| // authors : David Crosson | |
| // license : Apache2 | |
| // id : b45b0038-e0fc-4dd5-810f-5ad9b420f41e | |
| // created-on : 2020-05-31T19:54:52Z | |
| // managed-by : https://github.com/dacr/code-examples-manager | |
| // run-with : scala-cli $file |
| import { tap, retryWhen } from 'rxjs/operators'; | |
| import { webSocket } from 'rxjs/webSocket'; | |
| import { timer } from 'rxjs'; | |
| const wsSubjectConfig = { | |
| url: 'wss://www.gasnow.org/ws/gasprice', | |
| // added this to the config object | |
| closeObserver: { | |
| // this is triggered when connection is closed | |
| next(event) { |
| stages: | |
| - Setup | |
| - Deploy | |
| Permissions: | |
| stage: Setup | |
| image: alpine:3.11.2 | |
| tags: | |
| - gitlab | |
| script: |
| adb help // List all comands | |
| == Adb Server | |
| adb kill-server | |
| adb start-server | |
| == Adb Reboot | |
| adb reboot | |
| adb reboot recovery | |
| adb reboot-bootloader |
錢包是很多人第一次接觸 Ethereum 或其他虛擬貨幣的地方。不管是用手機或瀏覽器的錢包，相信很多人都對一串陌生的單字感到好奇（而且很重要還要備份）。這是源自於 Bitcoin 中錢包的設計，採用這套機制的錢包通常稱為 HD Wallet。本篇希望簡述 HD Wallet 的架構，再使用 JavaScript 套件從頭創建一個 Ethereum HD Ｗallet。
錢包顧名思義是存放$$$。但在虛擬貨幣世界有點不一樣，我的帳戶資訊（像是我有多少錢）是儲存在區塊鏈上，實際存在錢包中的是我的帳戶對應的 key。有了這把 key 我就可以在虛擬貨幣世界證明我的身份、就可以更改我帳戶的狀態（像是送錢給別人）。這樣來說，虛擬貨幣錢包實際上是管理和儲存 key 的工具。這把 key 就是我的私鑰，而帳戶是從我的公鑰衍伸出來。
| import string | |
| import sys | |
| import os | |
| from collections import Counter | |
| import win32com.client | |
| # Sample code for accessing QualityCenter | |
| # 2014 (C) Zohar Lorberbaum | |
| debug = False |
| import sys, time, datetime | |
| from copy import copy, deepcopy | |
| from collections import OrderedDict | |
| import string | |
| import math | |
| import win32com.client | |
| import traceback | |
| # Sample code for accessing MSProject | |
| # 2014 (C) Zohar Lorberbaum |
| @protocol AutoHook <NSObject> | |
| @required | |
| + (NSArray <NSString *> *)targetClasses; | |
| @end |
| // # Mocha Guide to Testing | |
| // Objective is to explain describe(), it(), and before()/etc hooks | |
| // 1. `describe()` is merely for grouping, which you can nest as deep | |
| // 2. `it()` is a test case | |
| // 3. `before()`, `beforeEach()`, `after()`, `afterEach()` are hooks to run | |
| // before/after first/each it() or describe(). | |
| // | |
| // Which means, `before()` is run before first it()/describe() |
| require('chromedriver'); | |
| const webdriver = require('selenium-webdriver'); | |
| const By = webdriver.By; | |
| describe('selenum test - part 2', () => { | |
| it('should be able to start a website', async () => { | |
| let driver = new webdriver.Builder() | |
| .forBrowser('chrome') | |
| .build(); |
