v-kolesnikov

CommonJS
ESM
AMD
ES modules
ES6 modules
mjs

import, export
script defer

v-kolesnikov

HTTP Streaming (or Chunked vs Store & Forward)

The standard way of understanding the HTTP protocol is via the request reply pattern. Each HTTP transaction consists of a finitely bounded HTTP request and a finitely bounded HTTP response.

However it's also possible for both parts of an HTTP 1.1 transaction to stream their possibly infinitely bounded data. The advantages is that the sender can send data that is beyond the sender's memory limit, and the receiver can act on

v-kolesnikov

CS Notes

Or what I would like to know clear (ясно).

• bytes (despite I know bits quite well)
• byte-strings
• encodings
• packing & unpacking bytes (Ruby Array#pack & String#unpack etc)

Bit

v-kolesnikov

# typed: strict
# frozen_string_literal: true

require "base32"
require "securerandom"
require "ulid"

# A type to represent UUIDs. Particularly useful for annotating fields in API
# representations or Sorbet parameters to help prevent accidentally mixing up
# UUIDs and EIDs as they're being passed around as loose strings.

v-kolesnikov

Инструменты:

• Оценка проектов Excel'ки + слайдкасты.
• М. Дорофеев, Ловушки статистического планирования, Управление проектами, №4(17) — 2009
• М. Дорофеев, Математическая статистика для менеджера проектов, Управление проектами, №2(19) — 2010

Видео:

• Управление
• Эффективность неэффективности Встреча CodeFreeze в Москве, 10.07.2014 [бородач, ограничения, шар, приоритизация]

v-kolesnikov

# frozen_string_literal: true

source "https://rubygems.org"

gem 'down'
gem 'dry-monads'
gem 'http'

v-kolesnikov

# https://github.com/jeremyevans/forme/blob/master/spec/forme_coverage.rb
require 'coverage'
require 'simplecov'

def SimpleCov.forme_coverage(opts = {})
  start do
    enable_coverage :branch
    add_filter "/spec/"
    add_group('Missing'){|src| src.covered_percent < 100}
    add_group('Covered'){|src| src.covered_percent == 100}

v-kolesnikov

audit=false
engine-strict=true
fund=false
legacy-peer-deps=false

v-kolesnikov

Bookmate Tech Stack

Backend

Primary technologies

• Ruby
• Ruby on Rails (v.6 at 12/22)
• Sidekiq
• MySQL

v-kolesnikov

     opts[:max_dataset_size]
    
     It is a very important constant that provides a useful performance optimization.
    
     For example we have N records in `users` table and want to show that number
     under the corresponding table on `/users` page. It would be quite fast for DB
     to count some tausands records and return that value back to the application.
     But in case of 1M records the same task will load the DB server significantly
     and without the relevant reason. There is no difference for web-app purposes
     whether we have 1M or 1M+1 records in the DB .