angelikatyborska

require 'benchmark'

module InjectVsEachWithObject
  ARRAY_LENGTH = 10_000
  ARRAY = (1..ARRAY_LENGTH).to_a
  REPETITIONS = ARGV[0].nil? ? 100 : ARGV[0].to_i

  def self.immutable_inject
    REPETITIONS.times do
      ARRAY.inject(0) { |sum, n| sum + n }

angelikatyborska

require 'benchmark'

module CharsAllVsRegexp
  VALID_CHARS = %w(A C G T)
  REGEXP = Regexp.new("\\A(#{ VALID_CHARS.join('|') })*\\z")
  ARRAY_LENGTH = 10000
  STRING_LENGTH = 5000

  STRINGS_GENERATOOR = ->(chars) do
    ARRAY_LENGTH.times.with_object([]) do |n, strings|

angelikatyborska

{
  "defaultSeverity": "warning",
  "plugins": [
    "stylelint-scss",
    "stylelint-order"
  ],
  "extends": "stylelint-config-sass-guidelines",
  "rules": {
    "scss/selector-no-redundant-nesting-selector": true,
    "scss/dollar-variable-pattern": "^_?[a-z\\-0-9]+$",

angelikatyborska

{
  "parser": "babel-eslint",
  "parserOptions": {
    "ecmaVersion": 7,
    "sourceType": "module",
    "ecmaFeatures": {
      "jsx": true,
      "modules": true,
      "experimentalObjectRestSpread": true
    }

angelikatyborska

fetch(request).then(
  response => {
    if (response.status >= 200 && response.status < 300) {
      if (response.headers.get('Content-Type') === 'text/csv') {
        response.text().then(
          text => {
            const windowUrl = window.URL || window.webkitURL;
            const blob = new Blob([text], {type: 'text/csv'});
            const url = windowUrl.createObjectURL(blob);
            window.location = url;

angelikatyborska

List the number of open HTTP connections per IP in Linux

This was useful when fighting a DDoS attack on one of our web servers.

Credit for it goes to our server provider, Memset, who helped us to stop the attack.

angelikatyborska

Inspired by dannyfritz/commit-message-emoji

See also gitmoji.

Commit type	Emoji
Initial commit	🎉 :tada:
Version tag	🔖 :bookmark:
New feature	✨ :sparkles:
Bugfix	🐛 :bug:

angelikatyborska

defmodule Words do
  def count_with_downcase_first(sentence) do
    sentence
    |> downcase_and_split
    |> count_words
  end

  def count_with_split_first(sentence) do
    sentence
    |> split_and_downcase

angelikatyborska

defmodule MyApp.Repo.Migrations.AddUuidOssp do
  use Ecto.Migration

  def up do
    execute("CREATE EXTENSION IF NOT EXISTS \"uuid-ossp\" WITH SCHEMA public;")
  end

  def down do
    execute("DROP EXTENSION \"uuid-ossp\";")
  end

angelikatyborska

useradd foo --create-home -G sudo
echo 'foo ALL=(ALL) NOPASSWD: ALL' >> /etc/sudoers