vitaly-pushkar

# Enable Powerlevel10k instant prompt. Should stay close to the top of ~/.zshrc.
# Initialization code that may require console input (password prompts, [y/n]
# confirmations, etc.) must go above this block; everything else may go below.
if [[ -r "${XDG_CACHE_HOME:-$HOME/.cache}/p10k-instant-prompt-${(%):-%n}.zsh" ]]; then
  source "${XDG_CACHE_HOME:-$HOME/.cache}/p10k-instant-prompt-${(%):-%n}.zsh"
fi

source "${HOME}/.zgen/zgen.zsh"

#if the init script doesn't exist

vitaly-pushkar

patch '/users/:id/' do
  result = UserUpdater.new(User, config.mailer).call(params).to_result
  
  # a simple, "unambitious" version
  if result.success?
    result.sucess.to_json
  else
    {error: result.failure}.to_json
  end
end

vitaly-pushkar

def find_user(id)
  Try { user_model.find_by(id: id) }
end

def update_user(user, data)
  Try do 
    user.update(data)
    user.reload
  end
end

vitaly-pushkar

def call(fields)
  fields = yield validate_fields(fields)
  email = yield validate_email(fields['email'])
  user = yield find_user(fields['id'])
  user = yield update_user(user, {name: fields['name'], email: fields['email']})
  sent = yield send_email(user, :profile_updated)

  Success(user)
end

vitaly-pushkar

ActiveRecord::Base.establish_connection( adapter: 'sqlite3', database: ":memory:" )
ActiveRecord::Schema.define(version: 1) { create_table(:users) { |t| t.string :name; t.string :email } }
  
class User < ActiveRecord::Base; end

User.create(name: 'Vitaly', email: 'vitaly.pushkar@gmail.com')

vitaly-pushkar

class UserUpdater
  include Dry::Monads[:result]
  
  attr_reader :user_model, :mailer

  def initialize(user_model, mailer)
    @user_model = user_model
    @mailer = mailer
  end

vitaly-pushkar

import scala.annotation.tailrec

object ChangingMoney extends App {
  val money = scala.io.StdIn.readInt()
  
  // canonical coin system; this algorithm will not work optimally for arbitrary coin systems
  val coins = List(10, 5, 1) 

  println(changeMoney(money))

vitaly-pushkar

Keybase proof

I hereby claim:

• I am vitaly-pushkar on github.
• I am pshk4r (https://keybase.io/pshk4r) on keybase.
• I have a public key ASA2hL6yQsXIZKVTrWaRn1Htv26UwrFThgrbrZIrwkkzdgo

To claim this, I am signing this object:

vitaly-pushkar

// implement isSorted, which checks whether an Array[A] is sorted according to a given comparison function:
// def isSorted[A] (as: Array[A], ordered: (A, A) => Boolean): Boolean

object Test {
  def isSorted[A](as: Array[A], ordered: (A, A) => Boolean): Boolean = {
    def loop(n: Int): Boolean =
      if (n+1 >= as.length) true
      else if (!ordered(as(n), as(n+1))) false
      else loop(n+1)

vitaly-pushkar

Keybase proof

I hereby claim:

• I am vitaly-pushkar on github.
• I am pshk4r (https://keybase.io/pshk4r) on keybase.
• I have a public key whose fingerprint is 3E2C 6703 DA33 3DD6 F718 4FF4 22E5 2E81 5D58 FC86

To claim this, I am signing this object: