CelesteComet

def to_currency(string)
  dollarified = ""
  # returns dollars and cents in string format
  dollars = string.split(".")[0].to_s
  cents = string.split(".")[1]

  # .23
  if cents
    cents = ("." + cents).to_f.round(2).to_s.split(".")[1].ljust(2,"0")
    dollarified += ("." + cents)

CelesteComet

number = "73167176531330624919225119674426574742355349194934
96983520312774506326239578318016984801869478851843
85861560789112949495459501737958331952853208805511
12540698747158523863050715693290963295227443043557
66896648950445244523161731856403098711121722383113
62229893423380308135336276614282806444486645238749
30358907296290491560440772390713810515859307960866
70172427121883998797908792274921901699720888093776
65727333001053367881220235421809751254540594752243
52584907711670556013604839586446706324415722155397

CelesteComet

=Navigating=
    visit('/projects')
    visit(post_comments_path(post))

=Clicking links and buttons=
    click_link('id-of-link')
    click_link('Link Text')
    click_button('Save')
    click('Link Text') # Click either a link or a button
    click('Button Value')

CelesteComet

# Mac OS X Lion introduced a new, iOS-like context menu when you press and hold a key
# that enables you to choose a character from a menu of options. If you are on Lion
# try it by pressing and holding down 'e' in any app that uses the default NSTextField
# for input.
#
# It's a nice feature and continues the blending of Mac OS X and iOS features. However,
# it's a nightmare to deal with in Sublime Text if you're running Vintage (Vim) mode,
# as it means you cannot press and hold h/j/k/l to move through your file. You have
# to repeatedly press the keys to navigate.

CelesteComet

class ChannelChannel < ApplicationCable::Channel
  def subscribed
    stream_from "channel_#{params[:channel_name]}"
  end
end

CelesteComet

require_relative "heap"

class Array
  def heap_sort!
    # Create a heap
    heap = BinaryMinHeap.new

    # make an array to keep the sorted elements
    sorted = []

CelesteComet

def googleCard(cards):

  end = None
  dic = {}

  for card in cards:
    currentCard = card
    
    if end is None:
      end = currentCard + 5

CelesteComet

function cpfValidate(str) {
	let match = str.match(/^(\d{9})-(\d{2})$/);
	if (!match) { return false }

	// If in the correct format
	let firstSetString = match[1];
	let secondSetString = match[2];
	let sum = 0;

	for (let i = 0; i < firstSetString.length; i++) {

CelesteComet

Credit Card Regex

• Amex Card: ^3[47][0-9]{13}$
• BCGlobal: ^(6541|6556)[0-9]{12}$
• Carte Blanche Card: ^389[0-9]{11}$
• Diners Club Card: ^3(?:0[0-5]|[68][0-9])[0-9]{11}$
• Discover Card: ^65[4-9][0-9]{13}|64[4-9][0-9]{13}|6011[0-9]{12}|(622(?:12[6-9]|1[3-9][0-9]|[2-8][0-9][0-9]|9[01][0-9]|92[0-5])[0-9]{10})$
• Insta Payment Card: ^63[7-9][0-9]{13}$
• JCB Card: ^(?:2131|1800|35\d{3})\d{11}$
• KoreanLocalCard: ^9[0-9]{15}$

CelesteComet

1. Change your database RDS instance security group to allow your machine to access it.
   • Add your ip to the security group to acces the instance via Postgres.
2. Make a copy of the database using pg_dump
   • $ pg_dump -h <public dns> -U <my username> -f <name of dump file .sql> <name of my database>
   • you will be asked for postgressql password.
   • a dump file(.sql) will be created
3. Restore that dump file to your local database.
   • but you might need to drop the database and create it first
   • $ psql -U <postgresql username> -d <database name> -f <dump file that you want to restore>

• the database is restored