artyomlagun

class PasscodeService
  # assume that phone can contain from 7 to 9 digits
  PHONE_REGEXP = /^\d{7,9}$/

  def initialize
    @response = { action: false, message: '' }
  end

  def send(phone)
    # validate phone through regexp

artyomlagun

def is_anagram?(first, second)
  first = first.split('').sort.join # get sorted string from words characters
  second = second.split('').sort.join

  matches = first.length == second.length # check match by length
  return if !matches # return if words have different length

  
  first.length.times do |i| # check every character in sorted string
    matches = first[i] == second[i]

artyomlagun

#config/application.rb

class SnakeCaseParametersMiddleware
  def initialize(app)
    @app = app
  end

  def call(env)
    request = ActionDispatch::Request.new(env)
    request.request_parameters.deep_transform_keys!(&:underscore)

artyomlagun

Disable Device Enrollment Notification on Mac.md

Restart the Mac in Recovery Mode by holding Comment-R during restart

Open Terminal in the recovery screen and type

csrutil disable

artyomlagun

How to create Ethereum Token (ERC20 Ethereum Standard For Tokens)

ERC20 Standard

The ERC20 standard is basically a specific set of functions which developers must use in their tokens to make them ERC20 compliant. While this is not an enforced rule, most DAPP developers are encouraged to follow the standards to ensure that their tokens can undergo interactions with various wallets, exchanges and smart contracts without any issues. This was great news for everyone because now they at least had an idea of how future tokens are expected to behave. ERC20 tokens have gotten widespread approval and most of the DAPPS sold on ICO’s have