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type below:

brew update
brew install redis

To have launchd start redis now and restart at login:

brew services start redis

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class VideoEmbedUrlGenerator
  REGEX_ID = %r{(?:youtube(?:-nocookie)?\.com\/(?:[^\/\n\s]+\/\S+\/|(?:v|e(?:mbed)?)\/|\S*?[?&]v=)|youtu\.be\/|vimeo\.com\/)([a-zA-Z0-9_-]{8,11})}.freeze
  REGEX_PROVIDER = /(youtube|youtu\.be|vimeo)/.freeze

  def initialize(url)
    @url = url
  end

  def construct_iframe
    '<iframe '\

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# Get YouTube ID from various YouTube URL
# Ruby port from JavaScript version: https://gist.github.com/takien/4077195/

def get_youtube_id(url)
  id = ''
  url = url.gsub(/(>|<)/i,'').split(/(vi\/|v=|\/v\/|youtu\.be\/|\/embed\/)/)
  if url[2] != nil
    id = url[2].split(/[^0-9a-z_\-]/i)
    id = id[0];
  else

CodeXSky

Remove MySQL completely

1. Open the Terminal

2. Use mysqldump to backup your databases

3. Check for MySQL processes with: ps -ax | grep mysql

4. Stop and kill any MySQL processes

5. Analyze MySQL on HomeBrew:

brew remove mysql

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How to install virtualenv:

Install pip first

sudo apt-get install python3-pip

Then install virtualenv using pip3

sudo pip3 install virtualenv 

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const bip39 = require("bip39");
const bip32 = require("ripple-bip32");
const ripple = require('ripplelib')
const sign = require('ripple-sign-keypairs')

var mnemonic = 'novel matter final only nice cheese address cradle civil crash great flame struggle consider crowd surface purpose saddle mango endless mixed trial tape wrap'
// Or generate:
// mnemonic = bip39.generateMnemonic()

console.log('mnemonic: ' + mnemonic)