wowdyaln

<?
  // ... ...
$conn->autocommit(FALSE);
$conn->begin_transaction();

  for ($i=0; $i < count($users); $i++){
    $user = $users[$i];
    $nickname = $nicknames[ mt_rand(0, count($nicknames)-1 )];
    $password = password_hash('123', PASSWORD_DEFAULT);

wowdyaln

#Node - File Paths

##File Paths Node has a path module which can be used to manipulate paths.

###Normalizing Paths Paths can be stored in different ways and it is neccessary to ensure that the path is standardized.

var path = require('path');
path.normalize('/foo/bar//baz/asdf/quux/..');

wowdyaln

// * set database.
db = db.getSiblingDB('local');

// * coordinate converter.
// https://kuro.tw/posts/2015/06/11/js-note-twd97-convert-to-longitude-and-latitude/
function twd97_to_wgs84(x, y) {
  let pow = Math.pow, M_PI = Math.PI;
  let sin = Math.sin, cos = Math.cos, tan = Math.tan;
  let a = 6378137.0, b = 6356752.314245;
  let lng0 = 121 * M_PI / 180, k0 = 0.9999, dx = 250000, dy = 0;

wowdyaln

From my Pluralsight course: https://app.pluralsight.com/library/courses/asynchronous-javascript-reasoning/table-of-contents

• Weather http://plnkr.co/edit/ZOAaSdtnfvR6WwiuVZ6s
• Avoid Blocking – Red Background http://plnkr.co/edit/z29VyH5BPvC4oc40EyOu
• setTimeout Pyramid Challenge http://plnkr.co/edit/DGiHFQOQfnipCcpex2RH
• Drag and Drop Red Box http://plnkr.co/edit/SmSpPS5ZgPvkgn8RE6y1
• Timer onReady http://plnkr.co/edit/gafgKCrxnDIJ6YaG9Jpx
• Timer measure http://plnkr.co/edit/kPOgzEuIvUmN4o6Jenem
• Progress Number Crunching - Web Worker https://plnkr.co/edit/Yy7BOZU9sIa8EyrxJwGH
• Event Listeners Are Synchronous http://plnkr.co/edit/mDvSHpF3HcTjtvltGmQn

wowdyaln

// 給一個 array, 一個 ele ，
function onlyOne(arr, ele) {
  var count = 0;

  // 先一個 for loop，算出 arr 裏面有幾個 ele
  for (var i = 0; i < arr.length; ++i) {
    if (arr[i] == ele)
      count++;
  }
  // 如果 ele 小於2個，那就是這個 ele 了

wowdyaln

patch:
  switches:
    - name: ascii_mode
      reset: 1
      states: [ 中文, 西文 ]
    - name: full_shape
      states: [ 半角, 全角 ]

wowdyaln

# Logs
logs
*.log
npm-debug.log*
yarn-debug.log*
yarn-error.log*

# Runtime data
pids
*.pid

wowdyaln

def queue_time(queue, cashier)
  
  # 每個位置一起減去當中最小的值
  def subtract_the_min(arr)
    arr.map do |ele|
      ele - arr.min
    end
  end

  # 如果 at_a_certain_moment 裡面有0 -> 找到這個位置，塞入下一個顧客 ->直到每個位置都不是0

wowdyaln

開源之道

Original transcript: http://allisonrandal.com/2012/04/15/open-source-enlightenment/

這幾年來，我慢慢覺得，我們參與開源社群，就像是在一條道路上並肩而行：這不僅讓我們成為更好的程式設計者，也讓我們通過與人合作，而成為更好的人。

您可以將它想成一條修行之道，讓身而為人的我們能夠不斷成長。接下來，我想談談我對開源世界的個人觀點，希望能與您分享。

首先，人是一切開源專案的核心。程式碼是很重要，但最核心的永遠是人。

wowdyaln

##### Sieve of Sundaram algorithm
def prime_Sundaram(n)
  n = n/2
  a = []
  a[n] = nil

  t = (Math.sqrt(4+8*n)-2)/4
  u = 0
  r = []